A liquid (r 5 1.65 g/cm3)
flows through a horizontal pipe of varying
cross section as in Figure
P9.46. In the first section, the cross-sectional
area is 10.0 cm2, the flow speed is 275 cm/s, and the
pressure is 1.20 3 105 Pa. In the second section, the
cross- sectional area is 2.50 cm2. Calculate the smaller
section’s (a) flow speed and (b) pressure.
