Question

How is the percent efficiency of a machine determined?

A. (force / distance) × 100%
B. (work output / work input) × 100%
C. (work input / work output) × 100%
D. (input force / output force) × 100%

Answer 1

i need the ansrew too

Explanation:

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Answer 2

The answer is B. I just answered this question earlier!