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College Physics: A Strategic Approach
College Physics: A Strategic Approach

mechanical resonance
mechanical resonance

Work and Kinetic Energy
Work and Kinetic Energy

... define kinetic energy, which is energy an object possesses because of its motion. In general, we can think of energy as the capacity that an object has for performing work. We shall see that the concepts of work and kinetic energy can be applied to the dynamics of a mechanical system without resortin ...
CE-PHY I - MECHANICS
CE-PHY I - MECHANICS

... Figure 4 shows a trolley running down a friction compensated runway. The trolley is connected to a hanging weight by means of a light inelastic string. A card of width 0.03 m is attached to the trolley. Light sources S and light detectors D are fixed at two positions A and B along the runway. Each l ...
Chapter 6 Gravitation and Central-force motion
Chapter 6 Gravitation and Central-force motion

ISNS4371_011107_bw - The University of Texas at Dallas
ISNS4371_011107_bw - The University of Texas at Dallas

... apparent weight - weight force that we actually sense not the downward force of gravity, but the normal (upward) force exerted by the surface we stand on - opposes gravity and prevents us falling to the center of the Earth - what is measured by a weighing scale. For a body supported in a stationary ...
Chapter-5 (Newton's laws of motion)
Chapter-5 (Newton's laws of motion)

How Things Work
How Things Work

Student Text, pp. 88-96
Student Text, pp. 88-96

Energy dissipation and dispersion effects in granular media
Energy dissipation and dispersion effects in granular media

Document
Document

RRHS P 12
RRHS P 12

... point whose location is given by the ordered pair (d x , d y ) - d x and d y are known as the components of d . As with one dimensional vectors, the direction of components can be specified with a positive or negative sign. The symbol d represents both of these components together. We will use the s ...
Understanding Energy
Understanding Energy

... wrong. This article, which is intended to be provocative, is an updated version of one that I wrote for an earlier workshop (Sefton, 1998). I assume that you already know quite a lot about the concept of energy in physics and that you have gained a lot of that knowledge by reading the kind of text-b ...
SHM Part 1 - Ask Physics
SHM Part 1 - Ask Physics

... Hence, frequency: ...
Time, what is it? Dynamical Properties of Time
Time, what is it? Dynamical Properties of Time

... For the purpose of constructing the rigorous and consistent theory taking into account the possible appearance of the physical properties of time, one should turn to dynamics. As was noted above, it is the dynamical principle that relates the evolution of a system in time to the action of the force ...
Student Text, pp. 203-219
Student Text, pp. 203-219

... According to Hooke’s law, if x 0, then Fx 0. In other words, if the spring is stretched in the x direction, it pulls in the opposite direction. Similarly, if x 0, then Fx 0, which means that if the spring is compressed in the x direction, it pushes in the opposite ...
T - Purdue Physics - Purdue University
T - Purdue Physics - Purdue University

... Space Station. An astronaut on the Space Station will measure its mass to be: ...
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... higher that the tallest point, Mount Everest (8850 m). How long will it take the ball to return to Everest? SOLUTION: We want to find the period T. We know that v = 8000 m s-1. We also know that r = 6408850 m. Since v = 2r/T we have T = 2r/v T = 2(6408850)/8000 T = (5030 s)(1 h / 3600 s) = 1. ...
Variable forces
Variable forces

Forces, Energy and Electricity
Forces, Energy and Electricity

Conservation of Energy
Conservation of Energy

Dynamics Chapter Problems
Dynamics Chapter Problems

Interim Assessment Sample Question
Interim Assessment Sample Question

... Why does it take so much force to stop a fully loaded train or truck as opposed to a small car? Why do satellites in circular orbit maintain the same speed at all times? How does a seat belt keep a passenger from being injured in a car crash? Why do objects on the front seat of a car continue moving ...
HW2 - Steady Server Pages
HW2 - Steady Server Pages

FPS with ESS units 1 and 2.book
FPS with ESS units 1 and 2.book

... part 2 of the Investigation. Do a few trial runs first so you can get used to releasing the marble the same way each time. Try to get very accurate and precise results. As students do the experiment, give them tips on releasing the marble the same way each time. Students will find that they can get ...
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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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