Answer :

Answer:

the Input Energy  is 1,100 J

Explanation:

Given;

useful energy, = 1000 J

energy wasted, = 100 J

The total or input energy is given as;

Input Energy = useful energy + energy wasted

Input Energy = 1000 J   +   100 J

Input Energy = 1,100 J

Therefore, the Input Energy  is 1,100 J

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