Water flows through a 0.226 m radius pipe at the rate of 0.129 m3 /s. The pressure in the pipe is atmospheric. The pipe slants downhill and feeds into a second pipe with a radius of 0.154 m, positioned 0.604 m lower. What is the gauge pressure in the lower pipe? The acceleration of gravity is 9.81 m/s 2 . Answer in units of Pa.