Physics, 26.07.2019 10:00 gakima57

If the efficiency of a lever is 30% and 560 j is used to move the lever, what is the work output? a) 18.7j b) 168 j c) 1,867 j d) 16,800 j

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If the efficiency of a lever is 30% and 560 j is used to move the lever, what is the work output?...