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Water moves through a constricted pipe in steady, ideal flow. At the lower point shown in the figure below, the pressure is P1 = 2.00 104 Pa, and the pipe diameter is 7.0 cm. At another point y = 0.20 m higher, the pressure is P2 = 1.15 104 Pa and the pipe diameter is 3.50 cm.

(a) Find the speed of flow in the lower section.

m/s

(b) Find the speed of flow in the upper section.

m/s

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