A book is pushed across a horizontal rough table at a steady speed for a certain distance. When apply the following energy principle to this question, assuming the system is book+earth+table, which of the energy term is positive? Select all apply. ΔK + ΔUg + ΔUsp + ΔEth + ΔEch = Wexternal ΔK ΔUg ΔUsp ΔEth ΔEch Wexternal none of the above
A book is pushed across a horizontal rough table at a steady speed for a certain distance. When apply the following energy principle to this question, assuming the system is book+earth+table, which of the energy term is positive? Select all apply. ΔK + ΔUg + ΔUsp + ΔEth + ΔEch = Wexternal ΔK ΔUg ΔUsp ΔEth ΔEch Wexternal none of the above
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Question
A.
A book is pushed across a horizontal rough table at a steady speed for a certain distance. When apply the following energy principle to this question, assuming the system is book+earth+table, which of the energy term is positive? Select all apply.
ΔK + ΔUg + ΔUsp + ΔEth + ΔEch = Wexternal
|
ΔK |
||
|
ΔUg |
||
|
ΔUsp |
||
|
ΔEth |
||
|
ΔEch |
||
|
Wexternal |
||
|
none of the above |
B.
A book is pushed across a horizontal rough table at a steady speed for a certain distance. When apply the following energy principle to this question, assuming the system is book+earth+table, which of the energy term is zero? Select all apply.
ΔK + ΔUg + ΔUsp + ΔEth + ΔEch = Wexternal
|
ΔK |
||
|
ΔUg |
||
|
ΔUsp |
||
|
ΔEth |
||
|
ΔEch |
||
|
Wexternal |
||
|
none of the above |
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