8. In Fig.FE3.1, water exits from a nozzle at steady state into atmospheric pressure of 101 kPa. If the flow rate is 160 gal/min, what is the average velocity at section 1? 1 gal = 3.78x10-3 m^3. (5 pts)
(a) 2.6 m/s (b) 0.81 m/s (c) 93 m/s (d) 23 m/s
(e) 1.62 m/s
9. A fireboat pump delivers water to a vertical nozzle with a 3:1 diameter ratio, as in Fig. FE3.6. If friction is neglected and the flow rate is 500 gal/min, how high will the outlet water jet rise? g=9.81 m/s^2. 1 gal = 3.78x10-3 m^3. (5 pts)
(a) 2.0 m (b) 9.8 m (c) 32 m (d) 64 m
(e) 98 m
10. A spherical tank, of diameter D, is leaking air.