Question: A fan with 2 2 - in - diameter blades moves 1 8 0 0 cfm ( cubic feet per minute ) of air at

A fan with 22-in-diameter blades moves 1800 cfm (cubic feet per minute) of air at 70\deg F at sea level. Determine the following:
a. The force required to hold the fan
b. The minimum power input required for the fan

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