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

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.

part 1: which substance has a higher solubility?

a

smallest amount left undissolved atall temps in table shown most has dissolved high sol'by