nessy44 nessy44

07-10-2019
Physics

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How do I answer number 4? Please help x

How do I answer number 4 Please help x class=

Respuesta :

MathPhys MathPhys

07-10-2019

Explanation:

Efficiency is the ratio of energy out to energy in.

e = Eout / Ein

0.52 = 800 J / Ein

Ein ≈ 1538 J

Round as needed.

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