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A fan ventilating a heading through a duct of 750mm diameter circulates 5m3s-1 of air at the face. Calculate the heat added to the air by the fan, if the input power of the fan is equal to 3kW.

A fan ventilating a heading through a duct of 750mm diameter circulates 5m3s-1 of air at the face. Calculate the heat added to the air by the fan, if the input power of the fan is equal to 3kW. Correct Answer 2617 J

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