Solved: A fan is to accelerate quiescent air to a velocity

Chapter 2, Problem 2126

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A fan is to accelerate quiescent air to a velocity to 12 m/s at a rate of 3 m3 /s. If the density of air is 1.15 kg/m3 , the minimum power that must be supplied to the fan is (a) 248 W (b) 72 W (c) 497 W (d) 216 W (e) 162 W

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