Explanation:
e = ?
work output = 300 J
work input = 600 J
[tex]efficiency \: = \frac{work \: output}{work \: input} \times 100[/tex]
we multiply by 100 in order to get your efficiency in percentage
[tex]e = \frac{300}{600} \times 100[/tex]
[tex]e = \frac{1}{2} \times 100[/tex]
[tex]e = 50\%[/tex]
I this helped pls give brainliest
