Answer:
96 Joules
Explanation:
We know that efficiency is the ratio of output power by input power. i.e. Efficiency describes the quality of machine or system how good it is.
Solution,
Energy input of system = 120 J
Efficiency = 80% = [tex] \frac{80}{100} = 0.8[/tex]
Now,
According to definition,
Efficiency = [tex] \frac{output}{input} [/tex]
Cross multiplication:
[tex]output \: = \: 0.8 \times 120[/tex]
Calculate the product
[tex]output \: = 96 \: joules[/tex]
Hope this helps...
Good luck on your assignment...
