The fan For 10 minutes performs work equal to 21kJ, which is equal to the power of the fan.
| September 17, 2021 | education
The fan power can be calculated using the formula:
N = A / t, where N is the fan power (W), A is the useful work of the fan (A = 21 kJ = 21 * 10 ^ 3 J), t is the fan operation time (t = 10 min = 10 * 60 s = 600 s).
Let’s calculate the fan power:
N = A / t = (21 * 10 ^ 3) / 600 = 35 W.
Answer: The fan power is 35 W.
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