A construction worker building a new roof accidentally drops a hammer from the top of the roof. The height at the point where the hammer drops is 4 meters. What is the speed of the hammer right before it hits the ground?
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Ответ:
W = 4.75 KW
Explanation:
First, we will calculate the heat to be removed:
Q = (No. of students)(Metabolic Power of Each Student)
Q = (190)(125 W)
Q = 23750 W = 23.75 KW
Now the formula of COP is:
W = 4.75 KW