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Monday, Nov. 11, 2002
Monday, Nov. 11, 2002

... Since the individual angular momentum can change, the total angular momentum of the system can change. Both internal and external forces can provide torque to individual particles. However, the internal forces do not generate net torque due to Newton’s third law. Let’s consider a two particle system ...
Powerpoint Slides
Powerpoint Slides

... Question: But what is the difference between lifting the box by a height of, say 2 meters as opposed to 1 meters? Answer: The force is the same in each case BUT: (1) force is applied to the box over different amount of distance (2) box makes louder “bang” when dropped on the floor We say that the a ...
SIMPLE HARMONIC MOTION EXERCISE –I POLARISER
SIMPLE HARMONIC MOTION EXERCISE –I POLARISER

Circular Motion HW-1
Circular Motion HW-1

Document
Document

... (h) This revisits the considerations of parts (d) and (e) (since we are returning to the minimum of U(x)) — but now with the advantage of having the analytic result of part (g). We see that the location which produces F = 0 is exactly x = 4.0 m. ...
(Some) Sources of Energy
(Some) Sources of Energy

... or leave, then there is a physical law that energy is conserved. •We will define various forms of energy and if we examine the system as a function of time, energy may change into different forms but the total is constant. Energy does not have direction just a magnitude and units. •Conservation of E ...
force
force

... First we need to define the word FORCE: • The cause of motion (what causes objects to move) • Two types of forces – Pushes – Pulls ...
Chapter 3 Collisions in Plasmas
Chapter 3 Collisions in Plasmas

Gravity Notes 2
Gravity Notes 2

Physics 1. Mechanics Problems
Physics 1. Mechanics Problems

... Problem 10.2. A particle, initially resting in the coordinate origin, suddenly breaks up into three particles with the masses m1 , m2 , and m3 . The particle m1 has the charge q > 0. It starts moving into negative x-direction in the homogeneous magnetic field B = (0, 0, B). After having completed ha ...
Physical Science Worksheet: Chapters 10 and 11
Physical Science Worksheet: Chapters 10 and 11

Lecture 8: Forces & The Laws of Motion
Lecture 8: Forces & The Laws of Motion

Physics 430
Physics 430

... A force F acting on a particle is conservative if and only if it satisfies two conditions: 1. F depends only on the particle’s position r (and not on the velocity v, or the time t, or any other variable); that is, F = F(r). 2. For any two points 1 and 2, the work W(1  2) done by F is the same for a ...
Lesson 24: Newton`s Second Law (Motion)
Lesson 24: Newton`s Second Law (Motion)

FE6
FE6

4-2 Force, Mass and Newton`s 2nd Law
4-2 Force, Mass and Newton`s 2nd Law

physics revision cards
physics revision cards

Slides - Powerpoint - University of Toronto Physics
Slides - Powerpoint - University of Toronto Physics

Slides - PDF - University of Toronto Physics
Slides - PDF - University of Toronto Physics

Newton`s First Law of Motion
Newton`s First Law of Motion

... in response to any effort made to start it, stop it, or otherwise change its state of motion  Mass and weight may not be the same, but they are proportional to each other Weight = mass x acceleration due to gravity Measured in Newtons (N) A 1-kg bag of nails weighs 9.8 N on the surface of Earth (2. ...
Ch 4: Newton`s Laws Demo time: Do you remember your Newton`s
Ch 4: Newton`s Laws Demo time: Do you remember your Newton`s

Physics 106P: Lecture 1 Notes
Physics 106P: Lecture 1 Notes

... proportional to the change in velocity. The ball that sticks has a velocity of downward to zero, but the velocity of the ball that bounces goes downward then upward. This change in momentum is greater and therefore has a greater impulse on it. ...
(2) as compared to (1)
(2) as compared to (1)

... ConcepTest 9.10b Elastic Collisions II Carefully place a small rubber ball (mass m) on top of a much bigger basketball (mass M) and drop these from some height h. What is the velocity of the smaller ball after the basketball hits the ground, reverses direction, and then collides with the small rubb ...
Circular motion notes
Circular motion notes

Course Syllabus
Course Syllabus

... between the two, (The gauges at work sites often use both types of units), (V.1 & V.3) Describe the motion of a body and calculate the necessary parameters by using equations of motion in a practical situation, (V.1 & V.4) resolve a vector into its rectangular components, (V.3) Analyze force-motion ...
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Relativistic mechanics

In physics, relativistic mechanics refers to mechanics compatible with special relativity (SR) and general relativity (GR). It provides a non-quantum mechanical description of a system of particles, or of a fluid, in cases where the velocities of moving objects are comparable to the speed of light c. As a result, classical mechanics is extended correctly to particles traveling at high velocities and energies, and provides a consistent inclusion of electromagnetism with the mechanics of particles. This was not possible in Galilean relativity, where it would be permitted for particles and light to travel at any speed, including faster than light. The foundations of relativistic mechanics are the postulates of special relativity and general relativity. The unification of SR with quantum mechanics is relativistic quantum mechanics, while attempts for that of GR is quantum gravity, an unsolved problem in physics.As with classical mechanics, the subject can be divided into ""kinematics""; the description of motion by specifying positions, velocities and accelerations, and ""dynamics""; a full description by considering energies, momenta, and angular momenta and their conservation laws, and forces acting on particles or exerted by particles. There is however a subtlety; what appears to be ""moving"" and what is ""at rest""—which is termed by ""statics"" in classical mechanics—depends on the relative motion of observers who measure in frames of reference.Although some definitions and concepts from classical mechanics do carry over to SR, such as force as the time derivative of momentum (Newton's second law), the work done by a particle as the line integral of force exerted on the particle along a path, and power as the time derivative of work done, there are a number of significant modifications to the remaining definitions and formulae. SR states that motion is relative and the laws of physics are the same for all experimenters irrespective of their inertial reference frames. In addition to modifying notions of space and time, SR forces one to reconsider the concepts of mass, momentum, and energy all of which are important constructs in Newtonian mechanics. SR shows that these concepts are all different aspects of the same physical quantity in much the same way that it shows space and time to be interrelated. Consequently, another modification is the concept of the center of mass of a system, which is straightforward to define in classical mechanics but much less obvious in relativity - see relativistic center of mass for details.The equations become more complicated in the more familiar three-dimensional vector calculus formalism, due to the nonlinearity in the Lorentz factor, which accurately accounts for relativistic velocity dependence and the speed limit of all particles and fields. However, they have a simpler and elegant form in four-dimensional spacetime, which includes flat Minkowski space (SR) and curved spacetime (GR), because three-dimensional vectors derived from space and scalars derived from time can be collected into four vectors, or four-dimensional tensors. However, the six component angular momentum tensor is sometimes called a bivector because in the 3D viewpoint it is two vectors (one of these, the conventional angular momentum, being an axial vector).
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