Water flows into a sink as shown in Video V5.1 and Fig. P5.9 at a rate of 2 gallons per...

Water flows into a sink as shown in Video V5.1 and Fig. P5.9 at a rate of 2 gallons per minute. Determine the average velocity through each of the three 0.4-in.-diameter overflow holes if the drain is closed and the water level in the sink remains constant.