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Q9. A horizontal pipe has a 180 degrees U-bend with a diameter of 300 mm throughout.

It carries a fluid of density 900 m³/kg at a rate of 0.8 m³/s.

The entrance pressure is 1.2 bar and exit pressure is 0. 98 bar.

(a) Calculate the pressure forces at the entrance and exit. (6)

(b) Calculate the velocity of the fluid. (3)

(c) Determine the force exerted by the liquid on the bend. (7)