09-11-2021
Physics

contestada

A machine works with an efficiency of 18% . The energy input is 500 joules/second. How much useful energy will the machine generate in 15 minutes?

A. 1.35 kJ
B. 25 kJ
C. 81 kJ
D. 135 kJ

Respuesta :

shaniahleake20620 shaniahleake20620

09-11-2021

I think the answer is C.

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