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A 75 mm diameter smooth pipe carries water (65 C) horizontally. At mass flow rate of 0.075 kg/s, the pressure drop is measured to be

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A 75 mm diameter smooth pipe carries water (65 C) horizontally. At mass flow rate of 0.075 kg/s, the pressure drop is measured to be 7.5 Pa per 100 m of pipe. Based on these measurements, determine; (1) Friction factor, f (2) Wall shear stress, Twall (3) Reynolds number, Re (4) Type of flow (laminar or turbulent). (Pw=103 kg/m, uw = 4 x 104kg/m.s)

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