Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter7: Conservation Of Energy
Section: Chapter Questions
Problem 2CQ
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E21)
a)Write the work done by a conservative force in terms of its potential energy.
b)In what direction are forces pointing to be considered centripetal?
c)In a system of interacting particles, what conservation law results when ∑Fiext=?
d)Anobjectexperiencingseveralforcesresultinginsomedisplacement.What is the net work done by these forces equal to If the work of one of these forces is path-dependent, then what is not conserved?
e) If a frictional force causes the total mechanical energy of a system to decrease, then
I) what happens to the system’s total internal energy?
ii) what is truly conserved?
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