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Q9. A horizontal pipe carrying fresh water tapers from 50 mm diameter at point 1 to 20 mm diameter at point 2 before increasing again to a diameter of 33 mm at point 3. There is a difference in height of 7 m between point 2 and 3.

The volumetric flowrate is 0.01 m/s. Calculate EACH of the following:

(a) the velocities at all points; (6)

(b) the pressure difference between point 1 and 2 and between point 2 and 3. (10)