Water is being pumped through a horizontal pipe that is 36.0 mlong and 13.5 cm in diameter. A pump maintains a gauge pressure of742 Pa at a large open tank at one end of the pipe. The other endof the pipe is open to the air. If this pipe is replaced by asecond one of length 9 m and diameter 5.0 cm, what gauge pressuremust the pump provide to give the same volume flow rate as for thefirst pipe?
