• Water moves through a constricted pipe in steady, ideal flow. At the lower point, the pipe's diameter is d ='6 cm. At another point y = 0.5 m higher, the pressure of water is P₂ 2 x 10⁴ Pa and the pipe's diameter on the right end is d = 2 cm. Given that the density of water is 1,000 kg/m. If the water flows out of the pipe on the upper end with a speed of 9m/s, find:
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•   (a) The speed of water (v) at the lower point.
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• (b) The pressure of water (P) at the lower point.