Describes displacement, velocity, acceleration as vectors and distance and speed as scalars, Show all needed equations and their use.
**More good stuff available at:
www.wsautter.com
and
http://www.youtube.com/results?search_query=wnsautter&aq=f
Describes displacement, velocity, acceleration as vectors and distance and speed as scalars, Show all needed equations and their use.
**More good stuff available at:
www.wsautter.com
and
http://www.youtube.com/results?search_query=wnsautter&aq=f
This ppt was created by Dr Beka a lecture from Ekwendeni College of Health Sciences (ECoHS) Ekwendeni Mzimba Malawi. It is understandable and easy to read for students who are studying clinical medicine
Dear Students of grade 8, this presentation has been made for you to revise, and to copy what would you miss out of your class work. I hope to be useful for all of you.
After going through this module, you are expected to:
describe the motion of an object in terms of distance or displacement, speed or velocity and acceleration (S7FE-IIIa-1);
perform activities on speed, velocity and acceleration; and
compute for the speed, velocity and acceleration.
Motion - Distance time graphs and speed time graphs.pptxMehjabeenShaik1
Slideshow on distance time graphs and speed time graphs. It is very helpful for grades 7-9. It is very detailed. One stop for all graph types in science. Science graphs will become easy with this detailed ppt.
The PowerPoint presentation (ppt) under discussion proves to be an invaluable resource, offering a wealth of assistance and comprehensive details that cater to the needs of its audience. This presentation stands out as an exemplary tool, combining clarity, depth, and relevance to ensure a profound understanding of the subject matter.
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In conclusion, this PowerPoint presentation stands out as an invaluable educational tool, combining a helpful approach with meticulous detailing. Its clarity, depth, and relevance make it a go-to resource for individuals seeking a comprehensive understanding of the subject matter. Whether used for educational purposes, professional development, or personal enrichment, this ppt proves to be a reliable and effective guide, ensuring that its audience is not only informed but also empowered with knowledge. It is very catchy. The presentation's helpful and detailed nature is manifested in its strategic organization and seamless flow. The creators have thoughtfully structured the content, presenting information in a logical sequence that aids in the audience's comprehension. Each section builds upon the previous one.
Thank you lot
Nutraceutical market, scope and growth: Herbal drug technologyLokesh Patil
As consumer awareness of health and wellness rises, the nutraceutical market—which includes goods like functional meals, drinks, and dietary supplements that provide health advantages beyond basic nutrition—is growing significantly. As healthcare expenses rise, the population ages, and people want natural and preventative health solutions more and more, this industry is increasing quickly. Further driving market expansion are product formulation innovations and the use of cutting-edge technology for customized nutrition. With its worldwide reach, the nutraceutical industry is expected to keep growing and provide significant chances for research and investment in a number of categories, including vitamins, minerals, probiotics, and herbal supplements.
Seminar of U.V. Spectroscopy by SAMIR PANDASAMIR PANDA
Spectroscopy is a branch of science dealing the study of interaction of electromagnetic radiation with matter.
Ultraviolet-visible spectroscopy refers to absorption spectroscopy or reflect spectroscopy in the UV-VIS spectral region.
Ultraviolet-visible spectroscopy is an analytical method that can measure the amount of light received by the analyte.
Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...University of Maribor
Slides from:
11th International Conference on Electrical, Electronics and Computer Engineering (IcETRAN), Niš, 3-6 June 2024
Track: Artificial Intelligence
https://www.etran.rs/2024/en/home-english/
Slide 1: Title Slide
Extrachromosomal Inheritance
Slide 2: Introduction to Extrachromosomal Inheritance
Definition: Extrachromosomal inheritance refers to the transmission of genetic material that is not found within the nucleus.
Key Components: Involves genes located in mitochondria, chloroplasts, and plasmids.
Slide 3: Mitochondrial Inheritance
Mitochondria: Organelles responsible for energy production.
Mitochondrial DNA (mtDNA): Circular DNA molecule found in mitochondria.
Inheritance Pattern: Maternally inherited, meaning it is passed from mothers to all their offspring.
Diseases: Examples include Leber’s hereditary optic neuropathy (LHON) and mitochondrial myopathy.
Slide 4: Chloroplast Inheritance
Chloroplasts: Organelles responsible for photosynthesis in plants.
Chloroplast DNA (cpDNA): Circular DNA molecule found in chloroplasts.
Inheritance Pattern: Often maternally inherited in most plants, but can vary in some species.
Examples: Variegation in plants, where leaf color patterns are determined by chloroplast DNA.
Slide 5: Plasmid Inheritance
Plasmids: Small, circular DNA molecules found in bacteria and some eukaryotes.
Features: Can carry antibiotic resistance genes and can be transferred between cells through processes like conjugation.
Significance: Important in biotechnology for gene cloning and genetic engineering.
Slide 6: Mechanisms of Extrachromosomal Inheritance
Non-Mendelian Patterns: Do not follow Mendel’s laws of inheritance.
Cytoplasmic Segregation: During cell division, organelles like mitochondria and chloroplasts are randomly distributed to daughter cells.
Heteroplasmy: Presence of more than one type of organellar genome within a cell, leading to variation in expression.
Slide 7: Examples of Extrachromosomal Inheritance
Four O’clock Plant (Mirabilis jalapa): Shows variegated leaves due to different cpDNA in leaf cells.
Petite Mutants in Yeast: Result from mutations in mitochondrial DNA affecting respiration.
Slide 8: Importance of Extrachromosomal Inheritance
Evolution: Provides insight into the evolution of eukaryotic cells.
Medicine: Understanding mitochondrial inheritance helps in diagnosing and treating mitochondrial diseases.
Agriculture: Chloroplast inheritance can be used in plant breeding and genetic modification.
Slide 9: Recent Research and Advances
Gene Editing: Techniques like CRISPR-Cas9 are being used to edit mitochondrial and chloroplast DNA.
Therapies: Development of mitochondrial replacement therapy (MRT) for preventing mitochondrial diseases.
Slide 10: Conclusion
Summary: Extrachromosomal inheritance involves the transmission of genetic material outside the nucleus and plays a crucial role in genetics, medicine, and biotechnology.
Future Directions: Continued research and technological advancements hold promise for new treatments and applications.
Slide 11: Questions and Discussion
Invite Audience: Open the floor for any questions or further discussion on the topic.
What is greenhouse gasses and how many gasses are there to affect the Earth.moosaasad1975
What are greenhouse gasses how they affect the earth and its environment what is the future of the environment and earth how the weather and the climate effects.
DERIVATION OF MODIFIED BERNOULLI EQUATION WITH VISCOUS EFFECTS AND TERMINAL V...Wasswaderrick3
In this book, we use conservation of energy techniques on a fluid element to derive the Modified Bernoulli equation of flow with viscous or friction effects. We derive the general equation of flow/ velocity and then from this we derive the Pouiselle flow equation, the transition flow equation and the turbulent flow equation. In the situations where there are no viscous effects , the equation reduces to the Bernoulli equation. From experimental results, we are able to include other terms in the Bernoulli equation. We also look at cases where pressure gradients exist. We use the Modified Bernoulli equation to derive equations of flow rate for pipes of different cross sectional areas connected together. We also extend our techniques of energy conservation to a sphere falling in a viscous medium under the effect of gravity. We demonstrate Stokes equation of terminal velocity and turbulent flow equation. We look at a way of calculating the time taken for a body to fall in a viscous medium. We also look at the general equation of terminal velocity.
1. KINEMATICS!
Introduction:
Welcome back! Hope you all are good. Today we are going to learn an important topic, that is kinematics. The big
question: what is kinematics? It is the study of speed, velocity, time and acceleration. We’ll study these quantities in
more detail in this tutorial.
Definition:
Okay so starting with speed and velocity, speed is defined as the distance travelled by an object in a given time, or
more simply as distance travelled per unit time. While on the other hand velocity is displacement per unit time. So
then, what is the difference between the two? The difference is the same as that between distance and displacement;
Speed is a scalar quantity while velocity is a vector. Now, what is scalar and what is vector? Well, scalar quantities
are those which have a magnitude only, while vector quantities have both a direction and a magnitude. Just to further
clear it out, consider a car going at a speed of 40 m/s. We are not told whether the car is going northwards, down the
hill or whatever. So what is 40m/s? It’s speed. A bit easier now?
How to calculate average speed?
Average speed can be calculated using the formula:
Average Speed = Total Distance Travelled / Total Time Taken
Q1. The distance b/w town A and town B is 25 km . A car travels from town A to town B and then returns to town A .
The total time taken is 5 hours. What was the average speed of the journey?
Uniform acceleration:
Acceleration is the rate of change of velocity. Simple as that!
Acceleration = (Final Velocity - Initial Velocity) / Time
Q2. A car starts from rest and travels in a straight path. It reaches a speed of 40 m/s in 8 seconds. What is it’s
acceleration, assuming that it accelerates uniformly?
If we know that the acceleration of an object is constant, we can find its average velocity by a different formula, which
is as follows:
Average Velocity = (Final Velocity + Initial Velocity) / 2
Also if an object is travelling with constant acceleration, then these equations of motions are applicable.
● 2as = v2
- u2
● s = ut + 1/2 at2
● v = u + at
● 2s = (v + u)t
Key:
a = acceleration , s = displacement, v = final velocity, u = initial velocity, t = time
These equations are very helpful in finding the unknown.
Non-uniform acceleration:
This form of acceleration changes with time. In such case, the equations of motions cannot be used.
2. Graphs:
Every situation that can be considered can be represented graphically. It helps us in various calculations and is easy
to interpret. In such graphs, time is always taken on the x-axis while distance on the y-axis.
Distance-Time Graphs:
Okay so here are the distance-time graphs of three objects in motion. As we know the gradient of distance-time
graph represents speed. Object A is moving with increasing speed a it’s gradient is increasing. Object B is moving
with uniform speed as it’s gradient is uniform. And similarly, as the gradient of C is decreasing, it’s moving with a
decreasing speed. Nothing too scientific, right?
Okay so moving on to the graph of a stationary object, it should be covering any distance, right? So that explains it
all! The graph of a stationary will look like this:
As we can see, the object is stuck on the same distance. Let’s say 40 m, and it’s on 40 m throughout. So it’s
stationary, not moving, at rest!
Speed-Time Graphs:
So here’s a speed-time graph for an object at rest:
3. Since the slope is equal to zero, there is no acceleration. And secondly, the velocity is zero, so object is at rest.
And a speed time graph for an object moving at constant velocity:
Since the slope is zero, the acceleration is obviously zero, right? And as there is no acceleration, that is, change in
velocity, the velocity is therefore constant. Get it?
Okay, and here’s a new concept: the area under a speed time graph gives the distance moved by the object.
The shaded area in this case also gives the distance moved by the object:
4. Graph for non uniform acceleration:
Okay so as we can that the slope of the graph is increasing, and we know that the slope in a velocity time graph
represents acceleration. Therefore, the acceleration in this case is increasing. Easy, no? And again, the shaded area
in this case represents the distance travelled by the object.
So to sum up:
● The gradient of a distance-time graph represents speed
● The gradient of a speed-time graph represents acceleration
● The area under a speed-time graph represents distance
Motion under free-fall:
The acceleration due to the gravitational pull of the earth is always constant and its value is 9.81 m/s2
. However,
when a body falls from the sky, it doesn't fall with constant acceleration. This is due to the resistance provided by air
which is present. As soon as the body accelerates the air resistance acting on the body also increases. Very soon,
the air resistance reaches the point where it balances the weight of the body which means that the acceleration of the
body becomes zero, as the resultant force acting on it is also zero (we will deal with forces in the next section). This
causes the body to fall with a uniform velocity; This velocity is known as terminal velocity. A typical graph for motion
under free-fall would look like this:
5. Task: Okay so finally, your assignment is to google questions of kinematics and assess yourself to see if you have grabbed the
basic concepts.
Answers:
Q1: 10 m/s
Q2: 5m/s2
6. Task: Okay so finally, your assignment is to google questions of kinematics and assess yourself to see if you have grabbed the
basic concepts.
Answers:
Q1: 10 m/s
Q2: 5m/s2