Physics, 18.03.2021 03:10 Beltrand504
While hammering a nail, you put in 30 Joules of work. The hammer then puts out 10 J of
work on the nail. What is that hammer's efficiency?
A. 300%
B. 40%
С. 33%
D. 33 J
Answers: 3
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While hammering a nail, you put in 30 Joules of work. The hammer then puts out 10 J of
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