HW-Ch14 - HW-CH149th Edition CH14 Problems: 27, 53, 65, 71,...

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Unformatted text preview: HW-CH149th Edition CH14 Problems: 27, 53, 65, 71, 829th Edition CH14 Problems: 27, 53, 65, 67, 8027.What would be the height of the atmosphere ifthe air density (a) were uniform and (b) decreaselinearly to zero with height? Assume that atsea level the air pressure is 1.0 atm and the airdensity is 1.3 kg/m3.53.Water is pumped steadily out of a &ooded base-ment at a speed of 5.0 m/s through a uniformhose of radius 1.0 cm.The hose passes outthrough a window 3.0m above the waterline.What is the power of the pump?65.Figure 14-53 shows a stream of water &owingthrough a hole at depth h= 10 cm in a tankholding water to heightH= 40cm. (a) At whatdistancexdoes the stream strike the &oor? (b)At what depth should a second hole be made togive the same value ofx? (c) At what depthshould a hole be made to maximizex?71.Aventuri meteris used to measure the &owspeed of a &uid in a pipe. The meter is connectedbetween two sections of pipe (Fig. 14-55); thecross-sectional area A of the entrance and exitof the meter matches the pipe¡s cross-sectional...
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This note was uploaded on 05/14/2011 for the course ECON 101 taught by Professor Asdaf during the Spring '11 term at Universidad de San Buenaventura Bogota.

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