Fequency And Velocity Lab Report

Fequency And Velocity Lab Report
In this experiment, a function generator and mechanical driver are to be used to create a standing
wave. With this system, the experimenter can test several hypothesis regarding a changing
frequency and mass. With careful calculations and observations, the experimenter can calculate the
experimental values of frequency and velocity using several different equations. Our main purpose
is to compare these experimental values to the calculated or measured theoretical values and
conclude why there were, if any, variations in data.
Procedures
The experiment begins the positioning of the mechanical driver. Apply some tension to the string by
adding weight to the end of the pulley system. Place the driver at 1 meter away from the non–fixed
end of the standing wave. In this case, the pulley is the non–fixed end. Be sure to measure from
where the string makes contact with the pulley, not where the ... Show more content on
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For part one, use the force equation of:
F = m*a where m equals the mass in kilograms and a equals the acceleration due to gravity, 9.81
m/s2. Record your calculations in your data table. Next, use the equation: v = (F*d)1/2 where F
equals the force you just calculated and d equals the linear mass density of the string to calculate the
experimental value of the wave speed. Th linera mass density value will be given to you by your
instructor. Record your calculations in your data table. Next, using excel, construct a graph of wave
speed as a function of wavelength. Use your values of the full wavelength as the values for x and the
values of the calculated velocity for the y values in your graph. After plotting, set a trend line and
display the equation of the graph. The slope of the line will be the calculated experimental value of
the frequency. Compare the experimental and theoretical value by calculating the percent error using
the
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The Coaster Of The Roller Coaster
Our roller coaster is about three and a half feet tall and two feet wide. It has one loop, two funnels,
three turns, one five–part zig–zag, and one pulley leading from the end to the top, and four bells that
rang and vibrated when the marble hit them. Our group divided the work by, assigning people jobs,
then switching after a while. An example of that some people would score and other group members
would fold, or some would build and others would test, and we took turns switching jobs.
Something surprising we learned during construction is that it is very hard to make turns out of
paper. Something else that went well for our group was making a bucket load of materials before we
started really making the roller coaster. Another thing that went well for us was using a very strong
foundation and structure before starting on the track. Also, we had to reinforce the structure when
the roller coaster started wobbling a bit. The pulley was a bit of a challenge because it was hard to
make and we ran out of string many times. We had to use much thicker string which held the pulley
together, but created too much friction. Lastly, after we spray–painted it, parts of the roller coaster
started falling apart, like the pulley. Fixed the kinks in the roller coaster, and our finished product
was Marbolous! In our construction our group would change how we constructed the pulley, the
crooked columns, and the lack of sloping nearing the end. The main problem we had with the pulley,
was the

Rube Goldberg Machine Analysis
The imagine that is displayed in the textbook is called the Rube Goldberg Machine. It was invented
by a cartoonist named, Jeffrey Coolidge, whom was known for displaying simple tasks in complex
ways. The image presented in the textbook, is showing how to turn on a light switch, by moving
necessary objects with certain amount of force to be triggered. One must first set the obstacle into
action for the effect to happen. The obstacle starts off with a boxing glove knocking a bowling ball
down a inclined plane, which causes the bowling pin attached to a pulley to drop. As the bowling
pin falls, a bird cage door pushes pool balls down a few inclined planes, causing the knocking books
stacked like dominos. Resulting at the end of the book pile

Achievements Of Ancient Greek Architecture
In ancient Greece, architecture was one of the most important aspects that they had. The architecture
was important because it was one of the ways the Greeks contributed to their world. Also, that some
of their designs are still here today, like the Athenian Acropolis, a sign that the Greek architecture
was influential. Three architectural achievements that the Greeks had were; the Columns, the
Archimedean Screw, and the Pulleys. Each of these aspects still affects our world today. These
developments in Greek architecture, have a lasting impact on our world.
Let's first look at the importance of the columns. Columns were used to decorate the facade of
buildings and support the upper structure of buildings. So, the columns reduce the amount of extra
weight from the top to overweigh the structure. Throughout ancient history, and even today columns
are still used for the purpose to have an extra element to buildings. On page 219 in paragraph one, it
states that "the ancient Greeks created some of the most beautiful structures from; religious temples
and statues to large outdoor arenas and government buildings." "However, the Greeks built their
most sacred buildings on the Athenian Acropolis, made from a hard limestone called marble. The
quote explains the importance of sacred buildings to the ancient Greeks. Another thing is that on
page 221 on the first caption, it states that "the temple of Athena Nike in Athens is one of the most
famous Ionic buildings in the world. It's

Verification Of Motion Lab
Verification of Newton's 2nd Law of Motion
Introduction The objective of this lab was to test Newton's 2nd law of motion, which states that the
acceleration of an object is proportional to the sum of forces acting on it and inversely proportional
to its mass. This was done by connecting a cart to a hook with a string and using a smart pulley to
measure the acceleration of varying masses on the hook as it falls down. System mass remains
constant. A free body diagram and applying Newton's 2nd Law yields the following relationship:
Where mass 1 is the mass of the cart and the weights it contains, while mass 2 is the hook and the
weights it holds. Thus the goal is to record data that follows this equation; as more masses are added
to the hook, ... Show more content on Helpwriting.net ...
A smart pulley is clamped onto the side of the table and connected to a computer to sync with
Capstone. In Capstone, select the device as "Photogate with Pulley." Set up a position vs time graph
to record data for. Attach a string to the cart, over the smart pulley, and latch it onto a 5g hook to the
side of the table. Obtain four weights: two 20g, one 50g, and one 100g. While keeping the cart in
place, keep one 20g weight on the hook and the remainder in the cart. Start recording data from the
smart pulley and release the cart so that it will slowly slide towards the edge of the table. Grab the
cart before it hits the pulley and stop recording data. Reset the cart's position to 50 cm away from
the edge. Repeat this process for the following masses on the hook: 40g (two 20g weights), 70g (one
20g weight and a 50g weight), 100g (just the 100g weight), and 170g (one 20g, 50g, and 100g).
Keep the remainder weights on the cart. Be careful with the cart at higher masses on the hook, as it
will move quickly. Once the trials are completed, create quadratic fits for the recorded data on
Capstone. Make sure to remove unwanted data, such as the initial motionless state of the cart and
the adrupt halt of its motion. The acceleration of the system is two times the value of the A constant
in the curve fit; record this and do this for all trials.
Results
After 5 trials, the data was shown to be positively

Verbonia
The construction of a town is a hard task, but the people of Verbonia were ready. The design and
building of Verbonia took a lot of intelligence and physical strength.They had to cut stones with a
saw, build cranes and pulleys, and find a way to get sunight on the roads.
Materials like stone, clay, mortar, and wood were used in the creation of Verbonia. To help get these
materials where they need to be on the buildings, the people of Verbonia had to build cranes and
pulleys. This took a lot of deep thinking and a lot of strength. In the article it stated, "Besides many
work sheds, the quarry contained a forge for making and repairing tools and a carpenter's shop in
which cranes and pulleys were built." This is in a time period where there wasn't the machinery we
have today. They had to make all the cranes and pulleys by hand. That would be very hard on your
body to do that.
Can you imagine trying to cut stone with a saw? This would be very difficult. To cut stones for a
long period of time would wear you out and you would need a lot of physical strength. As stated in
the article, "The stone was usually cut with a saw. When the stone was very hard , ... Show more
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This is so that the street can get sunlight through for the citizens who are walking on that street.
Most cities wouldn't even take that into account during the construction of the buildings. This would
take a very high knowledge on the angle of the sun and where the sun would hit the street at
different times. If they did not have this knowledge, it would be difficult to find a height for the
buildings that will still bring light to the road. In the passage is said, "No privately owned building,
they decreed, could be higher than twice the width of the street on which it stood. This ensured that
sunlight always reached the streets. They wanted the citizens of the town to have the best living
experience so they made these

The On Rain Forest Floor During Ecology Research
Introduction
In an attempt to avoid walking on the rain forest floor during ecology research in South America,
rope walkways were strung from tree to tree. To ensure the safety of the researchers, the maximum
weight that could be carried from tree to tree without the walkways collapsing had to be set. To
model this system, two pulleys containing a central object suspended halfway between them with
counterweights of equal mass on the outside of the pulleys was created, as shown in Figure 1. Our
goal was to determine how the sag of the walkway was related to the total mass at the center of the
pulleys.
Figure 1: The apparatus used (not to scale). A and C are the masses of the counterweight objects. A
and C are equal masses. B is ... Show more content on Helpwriting.net ...
F1 is the weight of counterweight A, F2 is the weight of counterweight C, and Fw is the weight of
the central object. Also shown are the forces on a coordinate system for the counterweights and the
central object. The distances between the pulleys and the sag of the walkway are also shown on a
coordinate system.
The system is in equilibrium, so we assumed that the horizontal and vertical components of the
forces will add up to zero. The counterweights A and C both had an equal mass, so they were both
referred to as F1 to simplify calculations. Where Mw is the force of the mass of object B and gravity
is g, we could solve for Fw. Fw = Mwg (1)
Using the mass of the counterweight objects A and C, the force F1 can be calculated using MA and
gravity. Because the pulleys are frictionless the force F1 should be the same magnitude on all parts
of the string between the center object and the object A.
F1 = MAg (2)
Using the trigonometry function sin, a combination of equations (1) and (2), and the law of
equilibrium ΣF = 0 where Fy=0 and Fx=0, the angle ϕ can be found.
F1sinϕ + F1sinϕ = Fw (3)
Rearranging equation (3) to give the angle ϕ by itself gives ϕ = sin–1(Fw/2F1) (4)
Since the walkway system creates a right triangle, the laws of trigonometry could also be used. With

the distance where the object B lies between the pulleys as L/2 and the angle ϕ, the sag of the central
object, D, could be found.
D = Ltanϕ/2 (5)
Combining equations (4) and (5) to

The Theory Of The Second Pulley
For Case 1, in order for equilibrium to be achieved, the fourth pulley was at 259.44 degrees and 35
grams on the hanger. The experimental equilibrant force magnitude, 35 grams, was a little bit higher
than the calculated equilibrant force magnitude, 31.170 grams. The experimental equilibrant force
direction did agree with the calculated equilibrant force direction for this scenario. There was a
12.5% percent error for Case 1.
For Case 2, the fourth pulley was at 15 degrees and 50 grams on the hanger. The experimental
equilibrant force magnitude, 50 grams, was way higher than the calculated equilibrated force
magnitude, 35.64 grams. Additionally, the calculated equilibrant force direction, 194.99 degrees, did
not agree with the experimental equilibrant force direction, 15 degrees. During the experiment,
when the fourth pulley was put on 194.99 degrees and tested with different grams on the hanger, the
ring in the center of the force table was not able to hold firmly. So, different angles and masses were
tested to achieve equilibrium. After various trial and errors, 15 degrees with 50 grams was the one
that was able to hold the ring firmly in the center. Since the experimental equilibrant force was
found through trial and errors, there was a pretty high percent error of 44.5%.
For Case 3, the fourth pulley was at 275 degrees with 50 grams. . The experimental equilibrant force
magnitude, 50 grams, was higher than the calculated equilibrated force magnitude, 45.28 grams.

Personal Narrative: Challenged The Process
To describe a time that a leader I know "Challenged the Process", I am going to look back at the
example that I used for our last reflection. One–day last summer while working for the Boulder
County trail crew, my crew, as well as one more, were tasked with moving a 1–ton bridge using
grip–hoists (manually–operated winches), and it proved to be a much more daunting task than we
had anticipated. After many failed attempts to move the bridge, frustration among crew members
was at an all–time high. We were working near a high–use mountain bike trail, and many riders had
been watching our progress, so the pressure to accomplish our goal was higher than usual. The grip–
hoists we were using have the ability to provide 3000 pounds of pulling force, ... Show more content
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I have never been much of a computer wizard, but I really want to learn about GIS to use in
designing trails. I am taking GIS this semester, and it has proved to be much more difficult than I
expected. I have spent twice as much time on GIS than any of my other courses, and I am still
having harder time grasping the material than anyone else in my class. This has been very humbling
for me, as I am not usually the student who has to constantly ask for help. While I have not
necessarily failed the course, many of my lab sessions have been a failure in my eyes. Through
taking this risk, and essentially failing to be successful in the class, it has become even more
obvious to me how much we must rely on group/team members, and each work around each other's
strengths and weaknesses if we want to be successful. There is another student in my class who
usually struggles in our other classes, but really understands GIS, and without his help I would be
struggling even more than I already am. I have become good friends with this student of the course
of this semester and now I help him with classes come easy to me but he struggles with.
For the most part, I really like to shake things up, so challenging the process comes naturally to me.
That being said, the largest personal obstacles that I have to challenging the process are inspiring
others and analyzing the group. It is easy for me to think of different ways to accomplish tasks, but
getting others on–board with an alternate approach is a whole different story. I am not the most
empathetic person, so knowing how other group members feel is also a struggle of mine. These are
both valid obstacles, but can be overcome simply by conscious effort on my

Who is the genius that created things like the pulley...
Who is the genius that created things like the pulley systems and fulcrums? His name is
Archimedes. Archimedes was a Greek mathematician, as well as a physicist, engineer, inventor and
astronomer. There is not a whole lot that is known about Archimedes, but he is regarded as a leading
scientist in classical age. Archimedes designed and created very innovated machine and tools that
are still used to this day. Archimedes was also considered one of the greatest mathematicians of the
ancient world and also plainly one of the greatest all time. The life of Archimedes, the machines he
created, books he wrote, and the intricate tools he created were and still are beneficial and
meaningful to us now. The life of Archimedes was one of intense and ... Show more content on
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The last days of Archimedes life was amidst a very long war. Archimedes died in 212 BC during the
Second Punic War, which was when a roman force under the command of General Marcus Claudius
Marcellus captured the city of Syracuse, which the siege ended up lasting for two years long.
According to an account from Plutarch, Archimedes was working on a mathematical diagram while
the city was being under attacked and captured. The Roman soldier commanded that Archimedes
come with him and meet General Marcellus but Archimedes declined the offer. The soldier did not
want to hear it and being frustrated he killed Archimedes with a sword. The account that Plutarch
gave isn't very clear, because assumably he may have been killed while trying to surrender to a
Roman Soldier. General Marcellus was angered by the death of Archimedes, because he saw him as
a valuable scientific asset and he actually had previously order him not to be dead. Archimedes was
an incredibly smart inventor and designer of some radical machines. One invention that Archimedes
is known for is the death ray. According to the 2nd century AD author Lucian, during the Siege of
Syracuse, Archimedes destroyed ships with fire. Centuries later, another writer named Anthemius of
Tralles mentions that Archimedes used burning–glasses as the weapon. The weapon, sometimes
called the "Archimedes heat ray", was used to focus the light from the sun and magnify on to the
ships burning them. This

How The Mass And Force Affect The Acceleration Of An Object
Scientific Report | Newton's Second Law
Title: How the mass and force affect the acceleration of an object.
Aim: To test Newton's seconds law if whether changing the mass or the force affects the
acceleration of an object or a trolley in this case to increase or decrease.
Introduction: Newton's laws of motion are three physical laws that describe the connection between
a body and the different forces acting upon it, as well as its motion in response to those forces. Isaac
Newton developed Galileo's ideas further and developed three law of motions. Newton's First Law
of Motion states that an object at rest with remain this way unless if it affected by a force. Also if an
object that is moving will continue at the same speed as well as the same direction until an
unbalanced force acts upon it. An example of unbalance force is when a scooter is being driven, the
friction and air resistance is going at it, the weight of the scooter is keeping the weight on the
ground, the reaction force is going up and the thrust of the scooter going forward. The force's
tendency to resist any change in motion is called an object's inertia. Newton's Second Law of
Motion states that an object will keep on accelerating in the direction of an unbalance force acting
upon it. The mass of the object and the size of the force acting depends upon the size of the
acceleration., F_net=m x a, is the formula to work out the total amount of force acting upon an
object. This formula can be

Lanchester System Case Study
In this paper, an interactive tool using the shiny package in R code was developed to better
understand the interactions between X and Y forces along with their appropriate kill rates. The
Lanchester system was developed by F.W. Lanchester and consists of differential equations where
surviving combat units are defined by variables. This papers will focus on the Square Law and a
series of questions will be answered throughout. The interactive tool created can be seen in
Appendix B of this report as well as the code which is still under development. As you will note
while using the tool, for some cases a force will go negative, but that is not correct when in fact the
variable should be at zero. This issue can be worked around and will be something that is corrected
in the near future. ... Show more content on Helpwriting.net ...
If the Y forces send at least 60 more personnel on the 20th unit of time then the battle will only go
for another 26 units and the Y force will cause X to retreat due to lack of force and rate. On the other
hand, if the X force sent another 10 soldiers then this battle would be over and the X force would
have won at 20 units of time. See Appendix A for graphs of X forces winning at 20 units and Y force
winning at 46 units with an additional 60 soldiers in Figures 9 and 10.
In summary, the Lanchester square law model is a simple but very informative model. It gives the
combat analyst a better understanding of forces against rates over time. I found it very effective
making a simple interactive tool to better understand how different rates and forces vary outcomes
over a specific amount of time. It was very impressive to see that the approximate and exact values
having such a low percent error as

which clothing brand has BE or BF letter on its logo?
Experiment 2
The Addition of Vectors
In this experiment a force table is used experimentally to determine the magnitude and direction of a
fourth force that is necessary to effect static equilibrium when three known forces act on a light ring.
The reliability of the data is investigated, and the experimental values are compared to theoretical
values.
Theory
According to Newton 's First Law of Motion, a particle is considered to be in static equilibrium
when the vector sum of all the forces acting on the particle equals zero:
This is referred to as the First Condition of Equilibrium. A stationary particle corresponds to this
situation. In two dimensions, (1) can be expressed as and That is, the sum of all the ... Show more
Clamp the fourth pulley at this angular position, pass the string over the pulley, and attach the fourth
weight hanger.
5) Determine the mass that will achieve equilibrium by adding mass to the fourth weight hanger
until the minimum amount necessary to center the ring is found. A method of accomplishing this is
to hold the ring so that it is centered around the pin and add mass to the fourth weight hanger that is
close to but less than the minimum mass needed to achieve equilibrium. When the ring is released,
the ring will move away from the weight hanger. Center the ring again and add small increments of
mass until the ring does not move. Record this value as m4min. Carefully continue to add mass until
the maximum amount is found that will maintain the ring in its centered position. Record this value
as m4max.
The best value of m4 is the average: 6) Use (4) to compute m4 and place this amount of mass on the
fourth string. Check that the ring is centered.
7) Loosen the fourth clamp pulley and carefully move the clamp in a clockwise direction until the
minimum angle is found that will maintain the ring in its centered position. Record this value as 4.
Repeat in the

Free Energy Machine The theory of Perpetual Motion and Energy
The theory of perpetual motion and energy is a topic that is one that is almost an outcast by the
scientific community. That is why it so interesting in my opinion. One day I was brain storming and
this method just popped into my head. My hypothesis states that a bigger pulley on the router of an
electric motor and a smaller pulley on the router of an alternator connected to a battery would put
out higher amounts of energy than the same or even smaller pulley on the alternator. The interesting
thing about this experiment is that the results actually matched my hypothesis. As far as getting this
to run in a continuous fashion if you add an inverter and another battery to this system, the
amperage would be enough to power the motor and the ... Show more content on Helpwriting.net ...
To do that the motor needs to have a lower voltage than needed in the system. A fan motor would
probably be the best in this situation. The fan motor has a switch that allows different speeds for the
motor and a better chance to get the RPM down to the best speed possible. If this mechanism were
to work then there would be a clean and renewable source of electricity to distribute throughout the
world.
The next component in the system is the pulley. Pulleys are an ingenious invention that we use in
everyday objects such as cars, bikes, and clocks. The way that this system is set up is like that of a
car. In a car there are 4 different gears. There is first gear witch spins at the same speed or RPM as
the motor does. As you "up shift" the RPM of the motor gets lower and the speed of the tires moves
faster. With the pulleys in the right ratio there is the hope that the alternator will spin faster than the
motor does thus putting out a surplus of electricity
The choice of a metal chain or a rubber type belt was a tough one. Both of these options to drive this
mechanism have their own strengths and weaknesses. The pros to the chain are that it is will wear
out less easily, the chain wont slip as much and the chain also stands to be more efficient because it
doesn't stretch as much as the rubber belt or any other non–metal belt does which causes drag. The
cons are that it can rust and it weighs more than a rubber belt. The pros to the rubber belt are that it
is light

Lab Report Composition of Concurrent Forces Essay
De La Salle University – Science and Technology Campus
Biñan, Laguna
In partial fulfillment of the requirements in
PHYSICS–XA1
Composition of Concurrent Forces
Submitted by:
Andrian Earl M. Magno
IV – AB Communication Arts
Submitted to:
Professor Nelson Arboleda
December 08, 2014
I. INTRODUCTION
A. Background The forces that are involve with the experiments are basically focused on the
concurrent forces. The experiment also allows us to develop the condition of balancing or arranging
the angles both sides on a force table. This laboratory experiment allows us to take the mathematical
abstraction of a vector to make it tangible as possible. This experiment will look into two ways of ...
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II. METHODOLGY
A. Materials
ME–9447 Force Table, 3 pulleys and pulley clamps, 3 mass hangers, mass set, string, metric ruler,
protractor, 2 sheets of paper.
B. Procedure
Experimental Method
As a result of trail and error method we find the angle for the third pulley and the mass that should

had be suspended from it. This will balance the forces deployed on the strings due to the other two
masses. While the third force is defined as the equilibrant (��⃗��) Since it is
the force that establishes the equilibrium. It is also the negative of the resultant –
��⃗�� = ��⃗�� = ��⃗ �� +
��⃗��. We gathered and recorded the mass and the angle required for the
third pulley to enable to put the system into the equilibrium in table 1.
To enable to determine the system is in equilibrium we use the following specifications.
Ring Method of Finding Equilibrium
For this method the ring should be centered over the post when the system is in equilibrium. So we
tack the center post down so it will flush with the top surface of the force table and it will be no
longer comptent to hold the ring in the position. We also pulled the ring slightly to the one side and
release it to enable to inspect that the ring returns to the center. Then if not, adjust the mass or/and
the angle of the pulley until the ring constantly returns to the center when it is pulled slightly to one
side.
Anchor String Method of Finding

Graeson Descriptive Writing
A cool, fall, light, Oklahoma breeze blows through the trees. The sound of rustling leaves, and the
cheerful chatter of my friends, fills my ears. My rainbow colored hoodie is wrapped around me.
People canoeing on the lake call my name, "Graeson!" They say, I smile and wave in their direction.
I wonder if they can see me from my spot behind the trees and poles. All of the sudden the person in
front of me in line steps up to the ladder. One of the people working at New Life Ranch tightens the
helmet on the kid's head. Then they attach a metal cable to his harness attached with a metal buckle.
When the cords are checked to make sure that they are secure, a lump appears in my throat.
Someone else hands me a rope, and I grip it tightly between ... Show more content on
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To be, promptly unbuckled and hurried down the ladder so that I could go next.
Ashlyn Buchanan climbed up to the zip line and everyone turned their attention to her. She had
already tried to go down, but she was too scared to go. Even when everyone that is supposed to be
pulling me up goes over to cheer her on, I walk over to the ladder, to be strapped and buckled in.
The monster stayed in my throat, but now, as I am getting buckled in and a helmet clamped on my
head, it grows bigger. My heartbeat starts racing as cords are tugged on.
My fear of heights hasn't bothered me and this far in 12 years of life it really hasn't, but now it does.
I go on rollercoasters, I do things with huge drops, and I love it. I only get scared when I feel
insecure. Usually I put my foot up against the rollercoaster car or the seat in front of me to give me
leverage. Not today, today there are no seats, just a cord. Keeping my attached and kept safe, not to
be safe, but for my sanity.
I continued to take each dreadful step up the ladder closer to behind pulled. One of the helpers from
earlier hands me a rope.
"Just let go when you want to start swinging." She kindly says in a sugar sweet voice. I nod to show
I

A Simplified Version Of Kattwyk Bridge
ABSTRACT
This is model and a simplified version of Kattwyk Bridge and has been made under the constraints
of space, time and resources available in the lab. The Bridge mechanism has been divided in three
sections. The central section lifts above, while the two side parts remain intact with the supporting
angles. The lift mechanism used for the bridge is based on the pulley system involving three pulleys.
A string is passed through the two pulleys on either side of middle section and the pulley at the
centre synchronizes the motion of two pulleys and makes the motion centralized.
The angles are used to restrict the motion of central section allowing only the motion in vertical
direction to occur and provide the stability to the bridge structure. A chain is also used to stop the
central section at any desired height depending on the height of ship assuming a real case situation
thus saving the power. The mechanism used to lift the central section is due to the constraint of not
using any electric motor or gears. In real case situation, the power can be given by electric motors
and cables can be used. The four bridge supporting angles that connect the three sections of the
bridge will actually go till the bottom surface of the river.
Index
Title Page 1
UDP Project Statement Form 2
Certificate page 3

Leafy Lilly Irrigation System
The Leafy Lilly Irrigation System is a Rube Goldberg machine that waters a plant using a system of
twelve simple machines. This machine is started with five books, used as third class levers, which
are good tools to use when you want to transfer force without the outcome varying from the original
goal that was in mind when building the machine. When the last book is knocked over, it falls off of
a ledge and hits an inclined plane that allows the book to easily travel a greater distance by letting it
use some of its gravitational potential energy. As the book slides to the end of the inclined plane, it
comes into contact with a wheel–and–axle that has a plow– like attachment on the front of it and the
wheel and axle rolls easily down another ... Show more content on Helpwriting.net ...
Newton's second law of motion is that the rate of change regarding the momentum of an object is
directly linked to the force acting upon it. Newton's third law of motion is that when something
applies a force to a another piece of matter, there will be an equal and opposite reaction. The LLIS is
mainly constructed around Newton's first law, as all of the simple machines are still until the
machine that is put into motion before it puts it into motion. Newton's second law is used in LLIS
when the car is rolling down the inclined plane, and when the pulley slides down the zipline. Both
the zipline and the car are put into motion by the simple machine before it. But after it is put into
motion, the force of gravity pulls it closer to the ground and increases the speed that machine was
originally traveling at. Newton's third law takes place in the LLIS in every single simple machine.
The machines that are in the LLIS are all applying a force to the surface that they are placed on.
Because they apply that force, they rest on the surface underneath

Carpometacarpal Articulations: Two Parts Of The Ulna
21. Carpometacarpal joints
a. The carpometacarpal articulations are planar synovial joints that connect the carpal to the
metacarpal bones (Starkey, et al., 2011).
22. Distal 2/3rds of the Ulna
a. The distal two thirds of the ulna is the bottom half of the ulnar shaft that many flexor and extensor
muscles from the hand and wrist insert (Starkey, et al., 2011).
23. Ulnar Styloid process
a. The ulnar styloid process is the small, pillar–like, posteromedial projection of the distal end of the
ulna (AnatomyExpert, 2014).
24. Ulnar collateral ligament
a. The ulnar collateral ligament originates from the ulnar styloid process, and inserts onto the
triquetrum and the pisiform bones (Starkey, et al., 2011).
b. This ligament restricts radial deviation and is ... Show more content on Helpwriting.net ...
Trapezium
a. The trapezium is located between the scaphoid bone and the thumb's proximal metacarpal bone
(Starkey, et al., 2011).
33. Lunate
a. The lunate is the prominate structure along the joint of the wrist while being in line with the 3rd
metacarpal (Starkey, et al., 2011).
b. This bone is located 1.5cm distal to Lister's tubercle, and the scapholunate articulation is a
common site for sprains (Starkey, et al., 2011).
34. Triquetrum
a. The triquetrum is the most medial bone of the hand, and is located approximately one finger's
width above the ulnar styloid process (Starkey, et al., 2011).
35. Pisiform
a. The pisiform is a small rounded protuberance on the palmar side of the hand, directly anterior to
the triquetrum (Starkey, et al., 2011).
b. This bone moves when the wrist is passively flexed since it lies on the flexor carpi ulnaris tendon
(Starkey, et al., 2011).
36. Hamate and hook
a. The hamate is in line with the center of the ulna, distal to the pisiform (Starkey, et al., 2011).
b. The hook of the hamate is a hard palmar projection that moves with the hand as the wrist is
flexed, and can be palpated by placing a thumb along the pisiform while applying a direct force with
the DIP (Starkey, et al.,

Archimedes Accomplishments
The year is 287 B.C.E, Alexander the Great Has been dead for fifty years and the kingdom he left to
his generals has begun to fracture. Around 300 B.C.E the Punic Wars began, throwing Greece into
disarray. The Hellenistic Age is coming to a close. However, at least one good thing came of this
year. One of the greatest engineers in history is born. His name is Archimedes and he will change
the world. Archimedes life, achievements, and effect on the modern world of engineering make him
one of the most prominent and important figures in the ancient world. Unfortunately little is known
about the life of Archimedes. In 287 B.C.E he was born in Syracuse. His father was an astronomer
named Pheidias and as a man he traveled to Alexandria to study ... Show more content on
Helpwriting.net ...
The Law of the Lever is one of Archimedes more prestigious discoveries. When he made his
discovery the fulcrum was already in use. However Archimedes was the first to discover that a
longer lever made lifting easier. Storys say that Archimedes once said, "Give me a lever and a place
to stand, and I will move the world." Another extremely important innovation by Archimedes was
the pulley. He created a complex system of pulleys that allowed him to lift almost anything. Another
story says that a team of men, after great effort dragged a trireme onto the beach.The men all
boarded the ship along with their animals and Archimedes was able to lift the ship and move it
easily by himself. The Archimedes Screw was another impressive invention by Archimedes. The
screw is massive and capable of lifting water from the ground. It is still used today in some third–
world countries.Other inventions by Archimedes included, the concept of buoyancy. He proved that,
when building boats, the material does not matter so much as how spread out it is. Archimedes was
also the first person to accurately estimate the value of pi. These are only a few of Archimedes most
prestigious achievements. As previously stated, many of the works of Archimedes have been lost,
however imagine what other incredible feats of engineering this man may have

Civilization Wheel
Throughout history people invent more and more things to try to make life easier. Some inventions
are unnoticed, while others make differences. The invention of the wheel and currency have made
important differences in the course of human civilization by the wheel enabling things to be
effortless and by currency contributing power and control over people and causing conflicts. Back in
3500 B.C., the wheel was invented. This simple creation has greatly impacted human civilization. It
was first designed as a pottery wheel, enabling people to easily create pots vases, and other pottery
more efficiently than with their hands. Over the years, people began using the pottery wheel to make
beautiful art, as well. People can make intricate designs on vases as beautiful art to put on display. It
has made an important difference in the course of human civilization as the pottery wheel by
providing a more productive and practical way to make pottery and furnishing an outlet for people
to express themselves through pottery art. The wheel did not stop at pottery. Pulleys utilize the
wheel to lift heavy objects effortlessly. The pulley is incorporated in various machines. For instance,
a crane uses a pulley to lift things, a well uses a pulley to pull the water out of the well, and a roller
coaster uses a pulley to ... Show more content on Helpwriting.net ...
Almost every mode of transportation embodies the wheel. Before the wheel, the only way to travel
from one place to another was by walking or by animal. After the wheel, new forms of
transportation appeared. The wheel is used cars, trains, bicycles, and more. With these forms of
transportation, it made traveling exponentially faster and easier. The invention of the wheel has
made countless important differences in the course of human civilization, including fast and easy
transportation, the ability to lift heavy objects, and the ability to make pottery and

How Long Is The Hooked Mass Of A Cart
The hypothesis is that the hooked mass used on the pulley to keep the cart stationary on the ramp is
equal to the mass of the cart. The hypothesis is invalid, it is not supported by the data. Mass is a the
amount of matter in an object so it always remain the same. As shown on the table, the hooked
masses vary depending on the degree of the incline so it cannot be the mass of the cart. In addition,
the correct calculation of the mass of the cart proves that the hypothesis is wrong. For the 15 degree
incline, the mass of the cart is 19.3kg while the hooked mass is .050kg. This clearly shows that the
hooked mass used on the pulley to to keep the cart stationary is not equal to the mass of the cart. For
the 20 degree incline, the mass of the

How To Checkbelt Essay
Most cars built from 1990 on have serpentine belts, what winds along pulleys and powers various
automotive components such as the alternator, power steering pump and air conditioner, and in
certain models the water pump. Other cars may have timing, drive and V–belts, and just like
serpentine belts, these are also subject to wear and eventual replacement. It is important for car
owners to learn how to check belts on a car, in an effort to detect problems that may lead to a
breakdown and costly repairs. Step No. 1 – Locate the belt. Lift and secure the hood of your vehicle
to locate the belt. Find the side of the engine where the serpentine belt weaves its way through a
series of pulleys, and securely held in place with a tensioner and a bolt. ... Show more content on
Helpwriting.net ...
2 – Look for trouble signs. As belts age, they begin to exhibit telltale signs of wear, including
fraying and cracking on the top (smooth) side of the belt. On the bottom (ribbed) side of the belt,
you may observe such problems as uneven rib wear, rib damage or even separation. Wear work
gloves and use a flashlight to detect problems. Step No. 3 – Check belt tension. Belts should be
firmly secured in place with only a slight amount of give permissible. There are two ways to check
belt tension. First, find the longest run of the belt between two pulleys, lay hold of it with two
fingers at the center and twist the belt toward the engine. If it turns more than 90 degrees, then the
belt is loose. Second, press down on the middle of the belt. A secure belt should give between one–
half to one inch and not a bit more. Step No. 4 – Replace as needed. If the drive belt needs
replacement, refer to the diagram before you get started. Purchase a new stretch fit belt and tools,
then observe how the current one wraps around the pulleys. Locate the self–adjusting tensioner,
using the removal tool on the tensioner to release same. Remove the old belt. Replace any loose or
worn pulleys as needed. Next, with the install tool, secure the belt ribs in the pulley grooves. Lastly,
tighten the tensioner, ensuring correct tightness before starting the

Lab Report Physics Paper
1. Discuss what is being demonstrated in this experiment.
The demonstrated in this experiment is when there is lightweight applied to a cart and there is more
weight applied to the pulley then a cart will move faster because the net force is pulling down. When
there is more weight applied to a cart, and less weight applied to the pulley, a cart will still move,
but not fast like part A. There is a relationship between force, mass and acceleration and those three
are the demonstrated of this experiment.
4. For the cart, using the weight of the cart along the incline as the tension, compare this to the
actual value obtained either up or down. Explain why they are different.
The difference between a cart going up, and a cart coming down at the constant velocity. When a
cart was going upward, the pulley has more mass and it was heavy to pull the cart upward. However,
when a cart was going downward, the pulley had less mass to push the cart downward at the
constant speed. They are different because one had more weight and another had less weight.
5. ... Show more content on Helpwriting.net ...
This experiment taught us, how PASCO photogate device helped us to find the constant velocity,
while a cart sliding on the flat surface forward and backward. Experiment 9, allowed us to learn how
to M2 Cart (kg), M1 hanger (kg), and Angle (degrees) to find the missing value of the friction Theo,
experiment average, normal, friction coefficient, a percentage error of coefficient, and the
percentage error. It also helped us to find the constant velocity while a cart going up and rolling
down on an angle ramp. Overall, this experiment increased out knowledge of how to use formulas
and Newton's law to get the results of the experiment and how to maintain the velocity of a cart in
the same speed by weight of the

Women In The Infantry? No Thanks Summary
Female integration in the infantry has been a recent topic of discussion with many voicing their own
opinion on the matter. With the recent opening of all jobs in the military to all genders, more are
beginning to show their stance. Voicing her own opinion on the matter is former U.S. Army Captain
Julie Pulley for an editorial in the Wall Street Journal titled "Women In The Infantry? No Thanks".
In this article she sees the juxtaposition between females integrating among the ranks of the infantry.
Pulley displays her stance firmly with her thesis stating "As a former captain and airborne soldier in
the Army's Second Infantry Division Support Command, I say be careful what you wish for.
Overturning a long–standing tradition in a martial organization ... Show more content on
Helpwriting.net ...
Army therefore being extremely credible on the subject. From her time in service she comes to the
conclusion that a woman cannot physically pull the same heavy load that a man can. Although there
is no doubt that some women are without a doubt more than capable to do this, more often than not,
most women cannot. She also presents the fact that when at the age of 18, males only, are made to
sign up for the draft. If ever there was a draft women are still exempt from being able to be drafted.
Her argument is that if women would like equality, is it not time to open the draft to all genders?.
Added with the evidence provided is statistics showing that the Department of Veterans Affairs pays
more than $500 million dollars for degenerative service connected ailments in females alone. This
raises the question of whether or not the amount of money being paid for service connected injuries
would rise. Assuming whether or not women do start taking part in infantry integration. These issues
do not require the filling in of people in order to complete a job, such as when a female gets
pregnant before a deployment. This not only would leave the unit with a person down, but it now
has to take the position and fill it with someone else from another unit or command. This makes
combat readiness a challenge. All of these factors can and will change the moral of

Lab Report Discussion
1. What are the physical principles being investigated in this lab? Our object in this experiment was
to gain familiarity in working with vector quantities. We demonstrated the process of the addition of
several vectors to form a resultant vector experimentally, graphically, and algebraically. By using all
three of these methods, we were able to see how each method produces a slightly different resultant
force (N) and resultant direction (in degrees). 2. How do your results verify the principles being
investigated? Discuss and evaluate the results, including percent errors and percent differences.
According to our percent error computations, the graphical method is more accurate than the
experimental method. For instead, the percent difference between experimental to ... Show more
If there are graphs, describe the shape of the plot (straight, curved) and say what this tells you about
the relationship between the variables. In this experiment we were given different vectors, and had
to find the equilibrant required to cancel out the vectors in the opposite direction. II think that they
would. Without pulleys, it may have been much more difficult to set up the correct angles and to
mmore difficult to set up the correct angles and to make the conditions of each string and weights 4.
Make a complete list of all the sources of measurement error that limit the accuracy of the results.
Possible sources of errors include: 1) Calibration of the pulley. It was necessary to tug at the pulleys
and make sure they were calibrated correctly to ensure accurate data. 2) Erroneous reading. While
using the vector table, we must read the angle from the string, instead of the pointer from the pulley.
3) Errors in the direction of the forces. If the strings were not at 90 degrees tangent to the ring, it
would have caused the greatest source of error. If the angles were the slightest bit off on the force
table, this would have skewed the weight necessary to equal the

Conversion Of A Lawn Mower Essay
Conversion of a lawn mower to generator.
INTRODUCTION:
The lawn mower used had a 3.5 Horse power Briggs and Stratton 4 stroke gas engine. That
particular model motor has a safety shut off lever on the lawn mower handle which has a cable
attached to the motor, and the attached cable must be activated to disengage the motor shut off break
and to allow spark to reach the spark plug. What was decided was to cut the cable off and deactivate
the motor shut off feature. If the motor has this feature, the cable will have to be observed and also
the levers on the motor to figure out a way to deactivate or preserve the feature. In both cases the
motor will not start unless something is done about the cable and levers.
A small hole was discovered in one of the lever plates on the side of the engine, the cable was then
pulled, and a small nail was then inserted into the lever to keep the mechanism from retracting and
shutting off the motor. As stated earlier, it will take a bit of time to figure out how the motor shut off
mechanism works (if there is one installed on the motor).
PROCEDURE:
The first step is to remove the motor from the lawn mower base. Typically, there are 3 or 4 bolts
holding the motor to the base, but before they can be removed, the mower blade and the shaft
coupler that holds the blade on the motor shaft will need to be removed. Getting the blade and the
coupling off is slightly difficult, but removing the blade is not nearly as difficult, however still
requires a

Nt1310 Unit 6 Lab
Radek Ocenas 8C
The Right Machine For The Job
Question: Which simple machine requires the least amount of force to lift a 1–kg mass?
Hypothesis: I think the easiest method that requires the least amount of effort will be the lifting with
ramp.
Variables :
Manipulated variable – Distance E.F moved
Responding variable – different types of machines
Controlled variable – Mass
Material and equipment –
30cm string
1–kg mass
20–N spring scale
ramp
60–cm string
pulley system
metre–stick
10–cm string
pivot or fulcrum
Procedure:
Station 1. Lifting without a Machine
1. Tie a loop at one end of the 30–cm string, so the loop fits over the hook on the spring scale. Tie
the other end of the string to the 1–kg mass.
2. Lift the spring scale just until the mass is hanging from the scale. Now slowly ... Show more
Measure and record the force needed to lift the mass.
Station 2. Lifting with a Ramp
3. Set up the ramp so that the highest point of the ramp is 10 cm above the top of the surface it's

sitting on.
4. Place the mass on the bottom of a ramp and attach the loop of string to the spring scale again.
With your hand at the top of the ramp, pull the mass steadily up the ramp. Measure and record the
force needed to raise the mass.
Station 3. Lifting with a Pulley System
5. Tie one end of the 60–cm string to the mass. Place the mass on a table below the pulleys and
thread the string between the pulleys.
6. Tie a loop at the loose end of the string and attach the string to the spring scale. Use the pulleys to
raise the load 10 cm. Measure and record the force needed to lift the mass
Lifting Method
Without Machine
Lifting with ramp
1st class lever
2nd class lever
3rd class

Atwoo
Objective:
We will determine the acceleration of the weights of an Atwood's Machine, both experimentally and
theoretically. We will attempt to verify Newton's Second law which is a mathematical statement
relating force, mass, and acceleration. Newton's Second law states that acceleration, a, is directly
related to net force, F, and inversely related to mass, m. Naturally this give F=ma. Using the
Atwood's Machine experimental acceleration data (for 10 different runs with 10 different
combinations of masses) will be gathered and compared to the theoretical acceleration which is
predicted by Newton's Second Law using a modified version of F=ma. The only two variables in
this system system that we will control are the the two masses. We ... Show more content on
Helpwriting.net ...
The inversely proportional relationship between total mass and acceleration is also shown in our
graph. I took the liberty of plotting the non–constant mass by F vs. aexp. Which clearly showed that
with an increase in total mass resulted in a gradual decrease of the acceleration of the system. There
were several sources of error in our experiment. But none affected the ability for a relationship
between mass, acceleration, force to be drawn. The largest error was the one mentioned above. But
its source was the easiest to account for. We mis–imputed the value of the spoke length into
DataStudio. Luckley this mistake was easily remedied due to the design of the pulley. The electronic
eye was recording a time that was exactly half of what it should have been. This time data produced
an acceleration that was exactly double what it should be. Therefore this was issue was easily
remedied by dividing the times by 2. Other sources of error were due to the frictional forces in the
pulley system, also the masses of the weights might not have been perfect. Air resistance was a
major player when the difference in masses was large, therefore acceleration was high. The weights
could have been verified to eliminate that error, and more advanced physics could have been used to
take into account the friction of the pulley and the air resistance.

The Field Of Serpentine Belt Drive System
The first solution is Parameter Estimation. Actually, in certain engineering problems, vibration
control for an axially moving string focuses on the vibration isolation problem. Controllers are
designed to restrict vibration resulting from external disturbances, such as support pulley
eccentricity or aerodynamic excitation, to areas not requiring high precision positioning.
Some basic works have been done in the field of serpentine belt drives are researches on the
vibration characteristics of axially moving string. Beikmann et al., (1996) applied a mathematical
model to examine the transverse vibration and stability of coupled belt–tensioner systems.
Meanwhile, they modeled and analyzed the serpentine belt drive systems with a dynamic tensioner
shown as figure 3.1.
Fig. 1 three–pulley serpentine belt drive system
This model system includes the essential components mounted in serpentine belt drive systems,
which is a driving pulley, a driven pulley, a dynamic tensioner. Assumptions are made to simplify
the modeling of the belt drive system: (i) Damping is negligible, (ii) Belt bending stiﬀness is
negligible and hence belts are modeled as strings, (iii) Axial translation speed of the belt, c, is
constant and uniform, (iv) Belt slippage is negligible, (v) Pulleys other than the tensioner have fixed
axes, (vi) Belt/pulley contact points are those calculated at equilibrium.
Hamilaton's principle can be applied to derive governing equations and boundary conditions. The

Brunelleschi Dome Vs The Pantheon
Brunelleschi Dome is a masterpiece and today it is the center of attention in the city of Florence. For
decades, this beautiful cathedral didn't have a roof. In 1418, they governor of the city decided that
need to change so he offered a prize to the architect who could come up with a design to complete
their cathedral. Brunelleschi had never studied architect, but his apprenticeship in Rome leads him
to think he could use the Pantheon as his model. He knew that the design needed to be different than
the Pantheon because he didn't have the lumber to make the scaffolding to hold the ceiling in place.
He decided to make a double dome, instead of a single dome as the pantheon is. His design had
many people worried because not only had it never

Case Brief Pulley V Malek
However, if this were true all Monica had to do was make the University aware of Harold's
presence. Had Monica done this, Harold would have been removed from the room. She would not
have been forced to clean his messes and her injury would not have happened. By not informing the
University Monica silently acquiesced to Harold moving in and became a harborer of Harold. It is
also likely that her care and desired control over Harold is enough to establish her as Harold's
keeper, while Rachel was not present.
Irritating Dog:
A person can irritate a dog by teasing, tormenting or abusing it. These three terms are provided, but
not defined in The Ohio dog bite statute R.C 955.28 Subsection (B). Ohio Rev. Code Ann. §955.28
(West, WestlawNext ... Show more content on Helpwriting.net ...
Malek, the plaintiff and defendant were neighbors. Pulley v. Malek, 495 N.E.2d 402 (Ohio 1986).
The defendant's dog was hit by a car and unable to move on its own. Id. at 403. The defendant then
called the plaintiff asking for a veterinarian's phone number. Id. Plaintiff gave the number and came
outside asking if he could help. Id. Plaintiff then picked up the dog and carried it into the defendant's
house, even though the defendant refused assistance. Id. Inside the defendant's house, plaintiff again
picked up the dog attempting to place it into the defendant's car and the dog bit the plaintiff. Id.
Ohio Court of Appeals, stated that there was no evidence of the plaintiff maliciously provoking the
dog. Id. However, no part of the R.C. 955.28(b) requires evidence of malicious provocation, to
establish the plaintiff's conduct as tormenting. Id. at 404. Most Ohio courts define tormenting as
conduct involving greater annoyance, usually resulting in physical pain. Id. at 405. The Supreme
Court of Ohio applied this definition to the facts in Pulley, and concluded that a reasonable jury
would find the picking up of the injured dog, sufficient for tormenting. Id.
In our case, the plaintiff was more aggressive toward the dog by striking it with her shoe. In Pulley
v. Malek, the plaintiff was attempting to assist the dog and ended up accidentally harming the dog
by picking it up. 495 N.E.2d 402 (Ohio 1986). In both cases, the dogs received physical pain as a
result of the plaintiff's conduct. Applying the same definition of tormenting used by The Supreme
Court of Ohio in Pulley, to our case, it is likely that Monica's conduct will constitute as tormenting,
if not abuse.

Experiment 5 : Simple Machines
Experiment 5: Simple Machines
Abigail Slate
Physics 1430 – 506
4 October 2017
Abstract In this experiment an inclined plane, wheel and axel, and pulley system were used to
demonstrate efficiency and work as well as show how Ideal Mechanical Advantage and Actual
Mechanical Advantage compare. The effort and resistance were measured in all simple machine
setups and were used to calculate AMA, IMA, and efficiency. The results showed that the greater the
effort, the greater the efficiency, and that both quantities are directly related. A notable error
occurred when efficiency exceeded 100% in the pulley system (Arrangement 3) and was attributed
to a measurement error in either the effort force or distance traveled by effort ... Show more content
on Helpwriting.net ...
The effort arrow represents another mass hanger with added mass attached to the wheel by a string.
Figure 3: Pulley system. These are the four pulley arrangements used in the lab. A mass hanger
(50g) with 500g added mass represents the resistance. The effort arrow represents another mass
hanger with added mass, used to balance the resistance force.
Experimental Procedure To display work and efficiency on an inclined plane, a 104.7g cart holding
500g is placed on the inclined plane as shown in Figure 1. At the angles of 15*, 30*, and 45*,
different masses are added to the hanger to represent effort. Keeping the cart on the bottom of the
inclined plane, mass is added to the effort hanger, until the cart can move up the inclined plane at a
constant speed. The angle, height, length, resistance, and effort are recorded in Table 1, as well as
the calculated values for IMA, AMA, and efficiency. To display work and efficiency on a wheel and
axel, a mass hanger (50g) is loaded with 500g of mass and added to the string wrapped around the
axel to total 550g of resistant force. Masses are added to a 50g mass hanger attached to a string
wrapped around the wheel as effort force, as displayed in Figure 2. Continue to add mass until the
resistance travels upward at a constant speed. Axel circumference, wheel circumference, resistance,
and effort are recorded in Table 2, as well as the calculated values for

Subluxtion Research Paper
Do you know the dangeors of solo mountain climbing? Well,solo mountain climbing isn't just you
without a partner, it's you without a rope too. There's also other things that could happen like
subluxtion. Falling is something else that could be bad in diffrent ways. Trigger finger and pulley
tears arn't as bad as everything else but it will still hurt. You could also get ractor cuff tears and
tendient pulled but,don't forget little things like scrapes, sunburns, and harsher injuries like boulders
and rocks falling on you. Subluxtion is a harmful dislocation. Well, Subluxtion is a partial
dislocation to get while solo mountain clymbing. Partial dislocaion is just a short version of saying a
sllight misalignment of the vertibrae, reguarded ... Show more content on Helpwriting.net ...
Trigger finger and pulley tears arn't as bad as subluxtion but, it still won't tickle. Trigger finger is
when one or more of your fingers get stuck in a bent possition. Pullley tears could happen in
Mountin Climbers fingers. So,Pulley tears in fingers is a complet rupture of one or more of the
flexure tendonits. The dangeors of solo mountain climbing is very high. You don't have a rope to
save you or a friend to call 911 or the hospital if you fall. If you do slip you can sufer from many
broken bones, brain injuries, or even dealth. If I were you I would stay with harnesses, ropes, and
friends. Be safe if you do not listen to me about not solo mountain climbing. I leaened most of this
research at Alex's Solo Mountain Climbing Adventures. I hope you know the dangeors of solo
mountain climbing. Subluxtion is a verry harsh thing to happen to you. Trigger finger and pulley
tears are something else that could happen that isn't as bad as every thing else. Solo mountain
climbing is a bad if you fell while climbing by your self. You can search up solo mountain climbing
for more up and down facts and stuff like that. Well no matter what you do on those rock walls
always remeber to be safe and travel

Essay
As of late, my companion called me from a roadside Dairy Queen in free for all. His father had been
driving his Ford auto down the roadway and heard and terrible clamor. To begin with, there was a
screech and afterward what seemed like a whip smacking the underneath of his hood. They didn't
know what was going on, however in the wake of examining, found that a dark elastic belt was half–
eaten off its pulleys. "Is the belt still on there?" I inquired. "All things considered, half of it is," he
proceeded as though the world were finishing. "My father ripped the part that was hanging off and
now just half remains!" "Have you driven it? What number of miles are on that thing?" I doubted.
"No doubt. We drove it into the parking garage ... Show more content on Helpwriting.net ...
The belt associates with and helps work your alternator, control directing, aerating and cooling and
water pump. You ought to never separate in favor of the street because of this belt parting from wear
and tear. The issue is effectively preventable. Essentially check the belt for breaking, fraying or on
the off chance that it looks matured. In any case, regardless of whether the belt looks phenomenal, it
might be an ideal opportunity to transform it. The time interim will rely on the suggestion from the
producer (see your auto's manual), yet it's sheltered to state that it ought to be supplanted each
60,000 miles, or each a few years. On the off chance that the issue endures and you wind up
changing the serpentine belt at regular intervals, at that point it's another issue. Probably, there is an
issue with the arrangement of one of the pulleys. Commonly, there could be an issue with what's
known as the symphonious balancer. While this sounds pleasant, this part is situated on the front of
the crankshaft. It's comprised of an inward steel area, an elastic sleeve, and a pulley with grooves
that the belt fits over. In the event that there's an issue with this, you'll most unquestionably need to
verify whether it's in arrangement with a straightedge. On the off chance that you see it's not lined
up with alternate pulleys, at that point take the auto to an expert. They may need to move the whole
motor over to

My First Encounter With Pulleys
"Let's talk about pulleys today! I have some pulleys here. Will anyone assemble them?" My high
school physics teacher looked around our classroom.
I raised my hand, walked to the front of the classroom and took up a pulley. Bending down, I
concentrated hard on the system in front of me.
This scene brought me back to my first encounter with pulleys in the science center years ago. A
voice echoed in my mind loudly and clearly: "Don't be obsessed and carry on!" The story of that day
started to unfold before my eyes.
As I walked into the City Science Center, I found the very place which had appeared in my dream
hundreds of times: a large interactive science area. As I had always expected, the science center
included not only topics I was curious about, but also topics of which I had never heard. For a
seven–year–old, there was a lot to explore and I remember myself wishing I could try them all at
once. So after saying "Cheese!" perfunctorily in front of my mom's camera, I ran into the nearest
exhibition without any hesitation.
Tired of controlling the flow of the waterfall model with my voice, I noticed some other kids
pushing around small carts. They were building houses! I immediately joined the group. To build a
balcony for the house, I had to elevate building materials to the second floor. According to the
instruction of the project, I was supposed to achieve the task with the help of pulleys. How did
pulleys work? How did I use a pulley? Which kind of pulleys should I use?

Project Based Learning Analysis
I think Project Based Learning has a more positive impact on learning and understanding than
traditional learning. When I was an elementary student, I always enjoyed projects more than lectures
because I was never bored. When I'm being talked at in a lecture about new information the
important points tend to go in one ear and out the other. I also know that I understand a concept
better when I'm shown an example or when I try it out myself. When I was in 3rd grade, we had to
make a simple machine, in science. We had two months to work on a machine on our own time at
home. We had to make a basic mechanical device for applying force. The mechanical device had to
include either a pulley, lever, wedge, inclined plane, screw, or a wheel and axle.

Investigating The Wave Speed Of Traveling Waves On A...
ii. Experiment 7
The first part of this experiment involved calculating the wave speed of traveling waves on a string
that was bounded on both sides (i.e. one side bounded by a clamp, and the other by a pulley) for
three different tensions being applied. The wave speed was calculated using two different methods:
1. By calculating the tension that was being applied to the string, T=(m_1+m_2 )g, where m_1 is the
mass of the hanging weight, and m_2 is the mass of the portion of the string hanging from the
pulley, and by calculating the linear mass density (μ) of the stretched string. After finding the
tension (T), and the linear mass density (μ), the predicted speed can be found using Equation (7.1):
v_predicted=√(T/μ)
2. By finding the total distance that the wave traveled (L), and multiplying that by two to get the
total travel distance, and dividing that quantity by the time it takes to complete one full oscillation, a
measured wave speed can be found:
v_measured=2L/∆t
For the first method, it is necessary to know the linear mass density of the string (μ), which can be
found by taking the total mass of the string (M), and dividing it by the total length of the string
(L_total). However, for this experiment, the string will be stretched to various lengths depending on
how much tension force is being applied by the hanging masses from the pulley. Also note that there
was no excess string hanging limply from the back of the pulley. Therefore, the linear mass density

Essay on The Moment of Inertia of a Disk and a Ring
Objective: The objective of this laboratory was to theoretically calculate the moment of inertia of a
disk and a ring and then to verify the moment of inertia for both objects through experiment. This
laboratory shows that while the theoretical is not within the uncertainty of the experimental, both
values are extremely similar to each other.
Data and Analysis:
Data:
Table 1: The Angular Acceleration of No Ring and Ring
Trial No Ring Ring
5g 4.57 ± 0.005 rad/s2 1.32 ± 0.005 rad/s2
10g 13.16 ± 0.005 rad/s2 3.09 ± 0.005 rad/s2
15g 20.45 ± 0.005 rad/s2 4.83 ± 0.005 rad/s2
20g 27.89 ± 0.005 rad/s2 6.60 ± 0.005 rad/s2
25g 35.65 ± 0.005 rad/s2 8.35 ± 0.005 rad/s2 Table 2: The Average Experimental and Theoretical
Moment of Inertia for No ... Show more content on Helpwriting.net ...
This calculation will be done later on. After using equation 1 to find the experimental moment of
inertia, the average and standard deviation of the five trials for No Ring and Ring were calculated
using Excel commands for average and standard deviation. The averages will be used later on in
order to calculate the experimental moment of inertia for the ring. In the next step, the theoretical
moment of inertia was calculated for the disk by using equation 2.
I_disk^th=1/2 M_d R_d^2 (2)
In the equation above, the I_disk^th is the theoretical moment of inertia of the disk, M_d is the mass
of the disk, Rd is the radius of the disk. Next, the theoretical moment of inertia of the Ring was
calculated using equation 3 below.
I_ring^th=1/2 M_r (R_1^2+R_2^2) (3)
In the equation above, I_ring^this the theoretical moment of inertia of the Ring, Mr is the mass of
the ring, R_1^2 is the inner radius of the ring, and R_2^2 is the outer radius of the ring. In order to
compare the experimental and theoretical moments of inertia of the Ring, the experimental moment
of inertia of the ring alone has to be calculated. It is given that the experimental moment of the
system equals to the experimental moment of inertia of the ring plus the experimental moment of
inertia of the disk. The experimental moment of inertia can be found by solving

Fequency And Velocity Lab Report

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Fequency And Velocity Lab Report