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** Energy** is the ability to do work. It is important because every object we produce requires

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Physical Requirements). Shear commenced a 3-D biomechanical study to show the physical fundamentals behind a flawless lacrosse shot. Lacrosse involves a complex rotary motion entailing a ** kinetic** linking from your feet to your arms.

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fixed volume rigid forces: retains shape / does not flow / little deformation (allow 1 mark for fixed volume, fixed shape) 4 (a) (i) (change in) potential ** energy** = mgh = 0.056 × 9.8 × 16 = 8.78 J (allow 8.8) (ii) (initial)

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Experiment 7: Work, Power and ** Energy**
Laboratory Report
John Karl Macrohon
Department of Math and Physics
College of Science, University of Santo Tomas
España, Manila Philippines
Abstract
The experiment is subdivided into two activities: Power and

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deformed and flattened by the impact and the transfer of ** energy**. Different brands of balls are made from different materials, and some balls have harder cores, while others have softer cores. The strength of the core directly relates to the coefficient of restitution; with a harder core, the ball will deform less and travel farther because of a more efficient transfer of

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velocity and acceleration of a
particle or rigid body in motion.
2.- Use the second law of motion to calculate acceleration and obtain
information about the forces acting on the object.
3.- Use ** energy** methods such as concepts of work,

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explained so mean *kinetic*** energy** / = ½m = 3/2 kT (c) (i) pV = nRT 2.1 × 107 × 7.8 × 10–3 = n × 8.3 × 290 n = 68 mol (ii) mean

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If the defining relations of the generalized coordinates do not depend explicitly on
time and the potential is not velocity dependent, then the Hamiltonian is given by
(T is the *kinetic*** energy** and L is the Lagrangian)
A)
H=T-V
B)
H = 2T - L
C)
H = 2T + L
D)
H = L - 2T
12.
An 16O ion having an

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extend a measure of kinectic ** energy** of molecules in the system. Thus the lower the

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Mechanics: Work, ** Energy**, Momentum, Kinematics of Rotational Motion
Jacque Lynn F Gabayno, Ph.D. Lecture Notes
1
Work as defined in Physics
r r W =F s
Force× Displacement = Force × Displacement
*SI Units: 1 N.m = 1 Joules (i.e. same as the unit of

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