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Chapter Assessment f
Chapter Assessment f

... rock. The rock has kinetic and potential energy as it flies through the air. When it hits the wall, the inelastic collision causes most of the mechanical energy to be converted to thermal and sound energy and to do work breaking apart the wall structure. Some of the mechan ical energy appears in the ...
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Document

Energy - ND
Energy - ND

Lesson Record – Physics -2009-2010
Lesson Record – Physics -2009-2010

Exam I solutions Name: Date - University of Iowa Physics
Exam I solutions Name: Date - University of Iowa Physics

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F - etsu

Welcome to Physics I !!!
Welcome to Physics I !!!

... • Cross products are messy…why would we ever use them, instead of the simpler L  I   RF • Because the cross product allows us to determine the angular momentum of, or torque on, objects which are not necessarily moving with constant, or even circular motion! ...
Day 8, Ch 4 Forces
Day 8, Ch 4 Forces

Problem Set 4 – Newton`s Laws and Forces
Problem Set 4 – Newton`s Laws and Forces

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Making the universe safe for historians: Time travel and the laws of
Making the universe safe for historians: Time travel and the laws of

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College Physics

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What Was THAT Again?

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Physics in Gymnastics - Mercyhurst Math

Chapter 2. Conservation of Energy
Chapter 2. Conservation of Energy

... (c) The net force on each block is zero, since their acceleration is also zero. It follows that the total work on each block must be zero. 2. (Prob. 6.19 in Young and Freedman.) Use the work-energy theorem to work these problems. Neglect air resistance in all cases. (a) A branch falls from a 95-m ta ...
Introduction to Potential Energy Chapter 7 [ Edit ]
Introduction to Potential Energy Chapter 7 [ Edit ]

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Energy Transformations Notes

Chapter 10 Rotational Motion
Chapter 10 Rotational Motion



... This value is the net work done on the package. The person actually does more work than this, because friction opposes the motion. Friction does negative work and removes some of the energy the person expends and converts it to thermal energy. The net work equals the sum of the work done by each ind ...
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MP 2 Quarterly Review Sheet Answers

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39771 PIA FORCES MOTION IG.indd

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Concept-Development Practice Page

biomechanics2008
biomechanics2008

... Using this concept, explain why: a. The white ball in pool slows down after impacting the black. Some of the momentum of the white ball is passed on to the black ball. b. When suddenly braking in a car, your body moves forward (thankfully you are wearing a seatbelt). The momentum of the car is tran ...
Chapter 4 Kinetics of a particle
Chapter 4 Kinetics of a particle

... Therefore,   any path Fc  dr is a function of initial and end points only, It is defined as the change of potential energy, P.E. P.E. between two points is equal to the work done by an external force against the field of a conservative force for bringing  the particle from the starting point ...
Slide 1
Slide 1

...  You’ll notice as you pull the spring, that the further you extend the spring, then the greater the force that you have to exert in order to extend it even further.  As long as the spring is not streched beyond a certain extension, called elastic limit, the force is directly proportional to the ex ...
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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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