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zepelin [54]
3 years ago
13

3

Physics
2 answers:
kramer3 years ago
5 0

Answer:

60.2 J

Explanation:

Efficiency is the ratio of work out to work in.

e = Wout / Win

0.86 = Wout / 70 J

Wout = 60.2 J

jeka943 years ago
5 0
60.2 joules is correct
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