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In: Mechanical Engineering

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

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

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

Calculate the friction factor for the duct.

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