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  3. a smooth rectangular duct 300 mm by 400 mm carries

A smooth rectangular duct 300 mm by 400 mm carries air at a rate of 1...

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Mechanical Engineering

A smooth rectangular duct 300 mm by 400 mm carries air at a rateof 1 m3/s.

Take the density of air to be 1.204 kg/m3 and the dynamicviscosity of air to be 1.825x10-5 kg/ms.

Calculate the friction factor for the duct.

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