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dexar [7]
3 years ago
14

A construction worker uses 1,000 J of work to screw two boards together. The screw does 855 J of work. Calculate the efficiency

of the screw.
PLZ HELP!!!


​
Physics
1 answer:
Dovator [93]3 years ago
7 0

Answer:

The efficiency of the screw is 85.5%

Explanation:

to calculate efficiency you have to do

efficiency=energy output/ energy input × 100%

so e=855/1000 × 100%=85.5%

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