Physics, 04.07.2019 07:20, bbrooks9827
If the work put into a lever is 25.0 joules and the work done by the lever is 20.0 joules, what is the efficiency of the lever? 100% because energy must be conserved. 80.0% 45.0% 5.0%
Answers: 2
= Work done by the lever = 20 J
= Work put in the lever = 25 J
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If the work put into a lever is 25.0 joules and the work done by the lever is 20.0 joules, what is t...
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