A large tank of water has a hose connected to it, as shown in Fig. 18.29. The tank is sealed at the top and has compressed air between the water surface and the top. When the water height h has the value 3.50 m, the absolute pressure P of the compressed air is 4.20 X 105 Pa. Assume that the air above the water expands at constant temperature, and take the atmospheric pressure to be 1.00 X 105 Pa.
(a) What is the speed with which water flows out of the hose when h = 3.50 m?
(b) As water flows out of the tank, h decreases. Calculate the speed of flow for h = 3.00 m and for h = 2.00 m.
(c) At what value of h does the flow stop?

Transcribed Image Text:

4.00 m 1.00 m