ayliiin5258 ayliiin5258
  • 08-02-2018
  • Physics
contestada

An engine takes in 200 J of heat, expels 40 J of heat, and does 160 J of work. What is the efficiency of the engine?

A. 40%
B. 60%
C. 80%
D. 20%

Respuesta :

JoeLlama JoeLlama
  • 08-02-2018
The answer would be C. 80%
Put 160 over 200 and find the GCF
160/200÷40=4/5=80%

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