zigzag47 zigzag47

20-09-2021
Physics

contestada

For every 100 J of energy supplied to a motor, 80 J of useful
work is done. Calculate the efficiency of the motor. Give your
answer as a percentage.

Respuesta :

saadatk saadatk

20-09-2021

Answer:

80%

Explanation:

efficiency = (useful work out / total energy in) x 100

= [tex]\frac{80}{100}[/tex] x 100

= 80%

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