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    Conceptual Physics Fundamentals
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    Exam 5: Momentum and Energy
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    A Machine Puts Out 100 Watts of Power for Every
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A Machine Puts Out 100 Watts of Power for Every

Question 69

Question 69

Multiple Choice

A machine puts out 100 Watts of power for every 1000 Watts put into it. The efficiency of the machine is


A) 10%.
B) 90%.
C) 110%.
D) 50%.
E) none of these

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