Please explain how you got the answer :(

asked Jun 28, 2021 25.3k views

4 votes

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3 votes

Answer:

36.5 kJ

Step-by-step explanation:

Energy by machine = energy to machine × efficiency

E = 52.1 kJ × 0.70

E = 36.5 kJ

Tengerye answered Jul 3, 2021

5.5k points

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