Question: Water at 20 C flows through a horizontal garden hose at the rate of 5.0 10-4 m3/s. The diameter of the garden hose is

Water at 20 °C flows through a horizontal garden hose at the rate of 5.0 × 10-4 m3/s. The diameter of the garden hose is 2.5 cm.

(a) What is the water speed in the hose?

(b) What is the pressure drop across a 15-m length of hose? Suppose the cross-sectional area of the hose is halved, but the length and pressure drop remain the same.

(d) By what factor does the volume flow rate change? Explain.

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