kitkatTHEloser kitkatTHEloser

09-04-2019
Physics

contestada

If the work output of a simple machine is 40 J and the work input is 50 J, the percent efficiency is _____%.
A. 5/4
B. 10
C. 80
D. 90

Respuesta :

jcherry99 jcherry99

09-04-2019

Efficiency = (Work out / Work In) * 100

Efficiency = (40 / 50) * 100

Efficiency = 0.8 * 100

Efficiency = 80%

The efficiency of any machine has to be less than 100%. If it is not, patent whatever you are doing. It will make you instantly wealthy.

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