Question

One end of a cylindrical pipe has a radius of 1.5 cm. Water (density = 1.0 x103kg/m3) streams steadily out at 7.0 m/s. The rate at which mass is leaving the pipe is:
A) 2.5 kg/s
B) 4.9 kg/s
C) 7.0 kg/s
D) 48 kg/s
E) 7.0 x103kg/s

Answer

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