just write why you choose the muscle it's easy just write how you thought it might be interesting or you wanted to know more abt it or whatever. I rlly hope this helped
Answer:
The efficiency of the engine is 40 %
Explanation:
Given;
input energy, = 2500 J
output energy, = 1000 J
The efficiency of the engine is given as;
Efficiency = output energy / input energy
Efficiency = 1000 / 2500
Efficiency = 0.4
Efficiency(%) = 0.4 x 100%
Efficiency = 40 %
Therefore, the efficiency of the engine is 40 %
