Multiply the coefficient by the change in temperature:
1.1*10^-5 x (37-5.2) = 0.0003498
Multiply Young's modulus by the area by the above answer:
2*10^11 x 52 * 0.0003498 x (1/100)^2 = 3.63792 x 10^5 N
Efficiency is the minimum use of energy to accomplish the task. The wasted energy will be 375 J when 750 J of energy is given.
<h3>What is wasted energy?</h3>
Wasted energy is energy that is not useful when the transformation in the system occurs.
Total energy = 750 J
The efficiency of the system = 50 %
Output work (OW) is calculated as:
Efficiency = output work ÷ input work × 100%
750 × 50 = 100 OW
OW = 375 J
Wasted energy = Total energy - output work
= 750 - 375
= 375 J
Therefore, the machine is 50 % inefficient and has wasted energy of 375 J.
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