2. You push very hard on a heavy desk, trying to move it. You do work on the desk: a. whether or not it moves, as long as you are exerting a force. b. only if it starts moving. c. only if it doesn't move. d. never-it does work on you
2. You push very hard on a heavy desk, trying to move it. You do work on the desk: a. whether or not it moves, as long as you are exerting a force. b. only if it starts moving. c. only if it doesn't move. d. never-it does work on you
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter5: Energy
Section: Chapter Questions
Problem 7CQ: As a mass tied to the end of a string strings from its highest point down to its lowest point, it is...
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