Water flows through a constricted pipe at a uniform rate. At one point, the diameter of the pipe is 43mm and the pressure is 8.3 x 10 4N/m2. At another point, 1 m higher than the previous point, the diameter is 17 mm and the pressure is 2.7 x 104 N/m2 . Calculate the velocities at the lower section and the upper section. Also calculate the rate of flow. Density of water

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answer:

a

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