What work does the fan do in 10 minutes if its power is 30 W?

univerkov | May 28, 2021 | education

Answer: 18 kJ.
Explanation of the solution to the problem: to solve this problem, you must use the formula:
N = A / t, where N is the fan power in W, A is the fan operation in J, t is the fan operation time in s. Before deciding, it is necessary to translate all known data into the SI system:
t = 10 min. = 10 * 60 = 600 s.
Now we substitute all the values into the formula and get the following:
A = N * t = 30 * 600 = 18000 J = 18 kJ.

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