(a) Water discharges from a horizontal pipe at the rate of 5.00 x 10-3 m3/s. At point A in the pipe where the cross-sectional area is 2.00 x 10-3 m2, the absolute pressure is 1.60 x 105 Pa.
What is the velocity of the water at point A?
What is the velocity of the water at point B in the pipe where the pressure is reduced to 1.20 x 105 Pa?
What is the cross-sectional area of the pipe at point B?