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saul85 [17]
3 years ago
15

what is the efficiency of a machine if your work on the machine is 1,200 j and the machines output work is 300j

Chemistry
1 answer:
astraxan [27]3 years ago
5 0

Answer:

25%

Explanation:

Efficiency is (output work ÷ input work) × 100

so

Efficiency = (300 J ÷ 1200 J ) × 100 %

                 = 25%

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