6.62 Calculate the volume flow rate of water at 5°C through the system shown in Fig. 6.21. 6.63 Calculate the pressure required in the larger section just ahead of the nozzle in Fig. 6.22 to produce a jet velocity of 75 ft/s. The fluid is water at 180°F. 10.02 35-mm diameter Flow 3.65 m 80-mm OD x 2.8-mm wall steel tube 565 kPa FIGURE 6.21 Problem 6.62.