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Physics, 09.09.2021 18:00 nikki8240

An engine takes in 200 J of heat, expels 80 J of heat, and does 120 J of work. What is the efficiency of the engine? (Use e =Westery
A. 40%
B. 60%
C. 20%
D. 80%

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An engine takes in 200 J of heat, expels 80 J of heat, and does 120 J of work. What is the efficie...
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