Vectors have both magnitude and direction, while scalars only have magnitude. There are two main methods for adding vectors graphically: the head-to-tail method and the parallelogram method. Vectors can also be represented and added using their horizontal and vertical components. The dot product of two vectors yields a scalar that indicates the cosine of the angle between the vectors, while the vector product yields a vector that is perpendicular to both original vectors and whose magnitude depends on the angle between them.
Motion of objects in physics are expressed by distance, displacement, speed, velocity, and acceleration which are associated with mathematical quantities called scalar and vector.
A projectile is an object upon which the only force acting is gravity. There are many examples of projectiles. An object dropped from rest is a projectile as long as that the influence of air resistance is negligible. An object that is thrown vertically upward is also a projectile provided that the influence of air resistance is negligible. And an object which is thrown upward at an angle to the horizontal is also a projectile as long as that the influence of air resistance is negligible. A projectile is any object that once projected or dropped continues in motion by its own inertia and is influenced only by the downward force of gravity.
Motion of objects in physics are expressed by distance, displacement, speed, velocity, and acceleration which are associated with mathematical quantities called scalar and vector.
A projectile is an object upon which the only force acting is gravity. There are many examples of projectiles. An object dropped from rest is a projectile as long as that the influence of air resistance is negligible. An object that is thrown vertically upward is also a projectile provided that the influence of air resistance is negligible. And an object which is thrown upward at an angle to the horizontal is also a projectile as long as that the influence of air resistance is negligible. A projectile is any object that once projected or dropped continues in motion by its own inertia and is influenced only by the downward force of gravity.
This PPT covers relative motion between particles in a very systematic and lucid manner. I hope this PPT will be helpful for instructor's as well as students.
This upload is actually experimental, so sorry for the lost animations. This is my first post on SlideShare. Future presentations will take into account the loss of animation.
Also, I saw that the titles of all my slides got covered by something, so I'll never use this theme again. The titles of the slides are:
Slide 1: Vectors and Scalars
Slide 2: In this lecture, you will learn
Slide 3: What are vectors?
Slide 4: What are scalars?
Slide 5: A joke
Slide 6: A joke
Slide 7: What was that for?
Slide 8: What was that for?
Slide 9: Vectors
Slide 10: Geometric Representation
Slide 11: Vector Addition
Slide 12: Scalar Multiplication
Slide 13: The Zero Vector
Slide 14: The Negative of a Vector
Slide 15: Vector Subtraction
Slide 16: More Properties of Vector Algebra
Slide 17: Magnitude of a Vector
Slide 18: Vectors in a Coordinate System
Slide 19: Unit Vectors
Slide 20: Algebraic Representation of Vectors
Slide 21: Algebraic Addition of Vectors
Slide 22: Algebraic Multiplication of a Vector by a Scalar
Slide 23: Example 1
Slide 24: Example 2
Slide 25: A few words of caution
Slide 26: Problems
A vector has magnitude and direction. There is an algebra and geometry of vectors which makes addition, subtraction, and scaling well-defined.
The scalar or dot product of vectors measures the angle between them, in a way. It's useful to show if two vectors are perpendicular or parallel.
In this relative motion and relative speed concept is demonstrated with help of examples, graphically and mathematically. The concepts of Einstein and Galileo
This presentation covers scalar quantity, vector quantity, addition of vectors & multiplication of vector. I hope this PPT will be helpful for Instructors as well as students.
This presentation explains vectors and scalars, their methods of representation, their products and other basic things about vectors and scalars with examples and sample problems.
This presentation is as per the course of DAE Electronics ELECT-212.
This PPT covers relative motion between particles in a very systematic and lucid manner. I hope this PPT will be helpful for instructor's as well as students.
This upload is actually experimental, so sorry for the lost animations. This is my first post on SlideShare. Future presentations will take into account the loss of animation.
Also, I saw that the titles of all my slides got covered by something, so I'll never use this theme again. The titles of the slides are:
Slide 1: Vectors and Scalars
Slide 2: In this lecture, you will learn
Slide 3: What are vectors?
Slide 4: What are scalars?
Slide 5: A joke
Slide 6: A joke
Slide 7: What was that for?
Slide 8: What was that for?
Slide 9: Vectors
Slide 10: Geometric Representation
Slide 11: Vector Addition
Slide 12: Scalar Multiplication
Slide 13: The Zero Vector
Slide 14: The Negative of a Vector
Slide 15: Vector Subtraction
Slide 16: More Properties of Vector Algebra
Slide 17: Magnitude of a Vector
Slide 18: Vectors in a Coordinate System
Slide 19: Unit Vectors
Slide 20: Algebraic Representation of Vectors
Slide 21: Algebraic Addition of Vectors
Slide 22: Algebraic Multiplication of a Vector by a Scalar
Slide 23: Example 1
Slide 24: Example 2
Slide 25: A few words of caution
Slide 26: Problems
A vector has magnitude and direction. There is an algebra and geometry of vectors which makes addition, subtraction, and scaling well-defined.
The scalar or dot product of vectors measures the angle between them, in a way. It's useful to show if two vectors are perpendicular or parallel.
In this relative motion and relative speed concept is demonstrated with help of examples, graphically and mathematically. The concepts of Einstein and Galileo
This presentation covers scalar quantity, vector quantity, addition of vectors & multiplication of vector. I hope this PPT will be helpful for Instructors as well as students.
This presentation explains vectors and scalars, their methods of representation, their products and other basic things about vectors and scalars with examples and sample problems.
This presentation is as per the course of DAE Electronics ELECT-212.
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.
Earliest Galaxies in the JADES Origins Field: Luminosity Function and Cosmic ...Sérgio Sacani
We characterize the earliest galaxy population in the JADES Origins Field (JOF), the deepest
imaging field observed with JWST. We make use of the ancillary Hubble optical images (5 filters
spanning 0.4−0.9µm) and novel JWST images with 14 filters spanning 0.8−5µm, including 7 mediumband filters, and reaching total exposure times of up to 46 hours per filter. We combine all our data
at > 2.3µm to construct an ultradeep image, reaching as deep as ≈ 31.4 AB mag in the stack and
30.3-31.0 AB mag (5σ, r = 0.1” circular aperture) in individual filters. We measure photometric
redshifts and use robust selection criteria to identify a sample of eight galaxy candidates at redshifts
z = 11.5 − 15. These objects show compact half-light radii of R1/2 ∼ 50 − 200pc, stellar masses of
M⋆ ∼ 107−108M⊙, and star-formation rates of SFR ∼ 0.1−1 M⊙ yr−1
. Our search finds no candidates
at 15 < z < 20, placing upper limits at these redshifts. We develop a forward modeling approach to
infer the properties of the evolving luminosity function without binning in redshift or luminosity that
marginalizes over the photometric redshift uncertainty of our candidate galaxies and incorporates the
impact of non-detections. We find a z = 12 luminosity function in good agreement with prior results,
and that the luminosity function normalization and UV luminosity density decline by a factor of ∼ 2.5
from z = 12 to z = 14. We discuss the possible implications of our results in the context of theoretical
models for evolution of the dark matter halo mass function.
Richard's aventures in two entangled wonderlandsRichard Gill
Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
(May 29th, 2024) Advancements in Intravital Microscopy- Insights for Preclini...Scintica Instrumentation
Intravital microscopy (IVM) is a powerful tool utilized to study cellular behavior over time and space in vivo. Much of our understanding of cell biology has been accomplished using various in vitro and ex vivo methods; however, these studies do not necessarily reflect the natural dynamics of biological processes. Unlike traditional cell culture or fixed tissue imaging, IVM allows for the ultra-fast high-resolution imaging of cellular processes over time and space and were studied in its natural environment. Real-time visualization of biological processes in the context of an intact organism helps maintain physiological relevance and provide insights into the progression of disease, response to treatments or developmental processes.
In this webinar we give an overview of advanced applications of the IVM system in preclinical research. IVIM technology is a provider of all-in-one intravital microscopy systems and solutions optimized for in vivo imaging of live animal models at sub-micron resolution. The system’s unique features and user-friendly software enables researchers to probe fast dynamic biological processes such as immune cell tracking, cell-cell interaction as well as vascularization and tumor metastasis with exceptional detail. This webinar will also give an overview of IVM being utilized in drug development, offering a view into the intricate interaction between drugs/nanoparticles and tissues in vivo and allows for the evaluation of therapeutic intervention in a variety of tissues and organs. This interdisciplinary collaboration continues to drive the advancements of novel therapeutic strategies.
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.
Professional air quality monitoring systems provide immediate, on-site data for analysis, compliance, and decision-making.
Monitor common gases, weather parameters, particulates.
Observation of Io’s Resurfacing via Plume Deposition Using Ground-based Adapt...Sérgio Sacani
Since volcanic activity was first discovered on Io from Voyager images in 1979, changes
on Io’s surface have been monitored from both spacecraft and ground-based telescopes.
Here, we present the highest spatial resolution images of Io ever obtained from a groundbased telescope. These images, acquired by the SHARK-VIS instrument on the Large
Binocular Telescope, show evidence of a major resurfacing event on Io’s trailing hemisphere. When compared to the most recent spacecraft images, the SHARK-VIS images
show that a plume deposit from a powerful eruption at Pillan Patera has covered part
of the long-lived Pele plume deposit. Although this type of resurfacing event may be common on Io, few have been detected due to the rarity of spacecraft visits and the previously low spatial resolution available from Earth-based telescopes. The SHARK-VIS instrument ushers in a new era of high resolution imaging of Io’s surface using adaptive
optics at visible wavelengths.
3. A SCALAR is ANY quantity in physics
that has MAGNITUDE, but NOT a
direction associated with it.
Magnitude – A numerical value with
units.
Scalar
Example
Magnitude
Speed 20 m/s
Distance 10 m
Age 15 years
Heat
Number of
horses
behind the
school
1000
calories
I guess: 12
4. Cartesian coordinates
A Cartesian coordinate system is defined as a set of two or more axes
with angles of 90° between each pair. These axes are said to be
orthogonal to each other
5. A VECTOR is ANY quantity in
physics that has BOTH
MAGNITUDE and DIRECTION.
Vector Magnitude &
Direction
Velocity 20 m/s, N
Acceleration 10 m/s/s, E
Force 5 N, West
A picture is worth a thousand word, at least they say so.
Tail
Head
L
H
250
length = magnitude
6 cm
250 above x-axis = direction
displacement x = 6 cm, 250
Vectors are typically illustrated by drawing an ARROW above the symbol.
The arrow is used to convey direction and magnitude.
v
6. The length of the vector, drawn
to scale, indicates the
magnitude of the vector quantity.
the direction of a vector is the
counterclockwise angle of rotation which
that vector makes with due East or x-axis.
7. Cartesian Representation of Vectors
𝑃 = (-2,-3)
Q = (3, 1)
R = (-3, -
1)
S = (2, 3).
For simplicity, we can shift the beginning of
a vector to the origin of the coordinate
system
8. we see that we can represent a vector in Cartesian
coordinates as
Called components
9. A resultant (the real one) velocity is sometimes
the result of combining two or more velocities.
10. A small plane is heading south at speed of 200 km/h
(If there was no wind plane’s velocity would be 200 km/h south)
1. The plane encounters a
tailwind of 80 km/h.
resulting velocity relative
to the ground is 280 km/h
2. It’s Texas: the wind changes
direction suddenly 1800.
Velocity vectors are now in
opposite direction.
Flying against a 80 km/h wind, the
plane travels only 120 km in one
hour relative to the ground.
e
e
200km
h
80
200km
h
km
h
200km
h
80 km
h
280km
h
120km
h
11. 3. The plane encounters a crosswind of 80 km/h.
Will the crosswind speed up the plane, slow it down, or have no effect?
To find that out we have to add these two vectors.
The sum of these two vectors is called RESULTANT.
200km
h
80 km
h
RESULTANT
RESULTANT VECTOR
(RESULTANT VELOCITY)
The magnitude of resultant velocity (speed v)
can be found using Pythagorean theorem
v = 215 km/h
Very unusual math, isn’t it? You added 200 km/h and 80 km/h and
you get 215 km/h. 1 + 1 is not necessarily 2 in vector algebra.
So relative to the ground, the plane
moves 215 km/h southeasterly.
2 2 2 2 2 2
1 2
v= v +v = (200km/h) + (80km/h) = 46400km /h
80km
h
200km
h
12. To find the direction
θ = tan−1
𝑣𝑦
𝑣𝑥
=
200
80
13. Not so fast
Vector Addition: 6 + 5 = ?
Till now you naively thought that 6 + 5 = 11.
In vector algebra
6 + 5 can be 10 and 2, and 8, and…
The rules for adding vectors are different than the rules for adding two
scalars, for example 2kg potato + 2kg potatos = 4 kg potatoes. Mass
doesn’t have direction.
Vectors are quantities which include direction. As such, the addition of two
or more vectors must take into account their directions.
14. There are a number of methods for carrying out
the addition of two (or more) vectors.
The most common methods are: "head-to-tail"
and “parallelogram” method of vector addition.
We’ll first do head-to-tail method, but before that, we
have to introduce multiplication of vector by scalar.
1. Graphical Vector Addition and
Subtraction
15. Two vectors are equal if they have the same magnitude
and the same direction.
This is the same vector. It doesn’t matter where it is. You
can move it around. It is determined ONLY by magnitude
and direction, NOT by starting point.
16. Multiplying vector by a scalar
Multiplying a vector by a
scalar will ONLY CHANGE
its magnitude.
Opposite vectors
One exception:
Multiplying a vector by “-1” does not
change the magnitude, but it does
reverse it's direction
Multiplying vector by 2 increases its magnitude
by a factor 2, but does not change its direction.
A 2A 3A ½ A
A
- A
– A
– 3A
19. This third vector is known as the "resultant" - it is the result of adding the
two vectors. The resultant is the vector sum of the two individual vectors.
So, you can see now that magnitude of the resultant is dependent upon
the direction which the two individual vectors have.
Vector addition - head-to-tail method
6
vectors: 6 units,E + 5 units,300
examples:
v – velocity: 6 m/s, E + 5 m/s, 300
a – acceleration: 6 m/s2, E + 5 m/s2, 300
F – force: 6 N, E + 5 N, 300
+
5
1. Vectors are drawn to scale in given direction.
2. The second vector is then drawn such that its
tail is positioned at the head of the first vector.
3. The sum of two such vectors is the third vector
which stretches from the tail of the first vector
to the head of the second vector.
300
you can ONLY add the same
kind (apples + apples)
20. vectors can be moved around as long as their length
(magnitude) and direction are not changed.
Vectors that have the same magnitude and the same direction
are the same.
The order in which two or more vectors are added does not effect result.
Adding A + B + C + D + E yields the
same result as adding C + B + A +
D + E or D + E + A + B + C. The
resultant, shown as the green
vector, has the same magnitude
and direction regardless of the
order in which the five individual
vectors are added.
21. Two methods for vector addition are equivalent.
"head-to-tail" method
of vector addition
parallelogram method
of vector addition
Parallelogram method
Vector addition – comparison between
“head-to-tail” and “parallelogram” method
22. "head-to-tail" method of vector addition
parallelogram method of vector addition
The resultant vector 𝐶
is the vector sum of the
two individual vectors.
𝐶 = 𝐴 + 𝐵
C
+
C
+
A
B B
A
B
A
B
A
B
23. The only difference is that it is much easier to use "head-to-tail" method
when you have to add several vectors.
What a mess if you try to do it using parallelogram method.
At least for me!!!!
25. Components of Vectors
– Any vector can be “resolved” into two component vectors.
These two vectors are called components.
Horizontal component
x – component of the vector
Vertical
component
y
–
component
of
the
vector
Vector addition: Sum of two vectors gives resultant vector.
Ax = A cos
Ay = A sin
A
Ax
Ay
x y
A = A + A
θ = tan−1
Ay
Ax
if the vector is in
the first
quandrant;
if not, find from
the picture.
26. Unit vectors
There is a set of special vectors that make much of the math
associated with vectors easier Called unit vectors,
they are vectors of magnitude 1 directed along the main
coordinate axes of the coordinate system.
27. A
v = 34 m/s @ 48° . Find vx and vy
vx = 34 m/s cos 48° = 23 m/s wind
vy = 34 m/s sin 48° = 25 m/s plane
vx
vy
v
Examle: A plane moves with velocity of 34 m/s @ 48°.
Calculate the plane's horizontal and vertical velocity components.
We could have asked: the plane moves with velocity of 34 m/s @ 48°.
It is heading north, but the wind is blowing east.
Find the speed of both, plane and wind.
𝑉 = 23𝑥 + 25 𝑦
28. A plane moves with a velocity of 63.5 m/s at 32 degrees South of East.
Calculate the plane's horizontal and vertical velocity components.
63.5 m/s
320
vx = ?
Vy = ?
Vy
𝑣𝑥 = 63.5 cos(3280) = 53.9 𝑚/𝑠
𝑣𝑦 = 63.5 sin(328) = −33.6 𝑚/𝑠
𝑉 = 53.9 𝑥 − 33.6𝑦
29. If you know x- and y- components of a vector you can find
the magnitude and direction of that vector:
A
Let:
Fx = 4 N
Fy = 3 N .
Find magnitude (always positive) and direction.
2 2
F= 4 +3 =5N
= tan−1
(¾) = 370
0
F 5N @37
Fx
Fy
F
31. 1
F
F
2
F
2
F
example:
1
F = 68 N@ 24° = 32 N @ 65°
2
F
2
1
F
F
F
Fx = F1x + F2x = 68 cos240 + 32 cos650 = 75.6 N
Fy = F1y + F2y = 68 sin240 + 32 sin650 = 56.7 N
N
5
.
94
F
F
F 2
y
2
x
= tan−1(
56.7
75.6
)= 36.90
N
F . @
0
945 37
34. Vector and dot product
what is dot product?
The dot product of two vectors A and B is defined
as the scalar value AB cos α
the scalar product is often referred
to as the dot product.
35. • If two vectors form a 90° angle, then the scalar product has the value zero
𝐴. 𝐵 = 𝐵. 𝐴
To find the angle between two vectors use
36. Example:
Two vectors A=(3,2,4)N and B=(1,2,3)N , find the magnitude of A.B and the
angle between them
Answer:
𝐴. 𝐵 = 3 ∗ 1 + 2 ∗ 2 + 3 ∗ 4 = 19N2
𝐴 = 32 + 22 + 42 = 5.4𝑁
𝐵 = 12 + 22 + 32 = 3.7𝑁
cos−1
19
5.4 ∗ 3.7
= 18
37. notes
• Scalar product of unit vecors as follow
• For the scalar product, the same distributive property that is valid for the
conventional multiplication of numbers holds:
40. Notes:
• It is important to realize that for the vector product, the order of the factors
matters
• the vector product with itself is always zero:
• If we have three vectors and we want to find the vector product between them