doctorlacario doctorlacario

17-06-2019
Physics

contestada

What efficiency of a car's engine when heat input is 200,000 joules and waste heat is 150,000 joules?
A. 75%
B. 35%
C. 25%
D. 85%

Respuesta :

smartpet182 smartpet182

27-06-2019

The answer is 25% because 50,000 is 25% of 200,000

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