A pipe is horizontal and carries oil that has a viscosity of 0.15 Pa · s. The volume flow rate of the oil is 4.6 10-5 m3/s. The length of the pipe is 45 m, and its radius is 0.64 cm. At the output end of the pipe the pressure is atmospheric pressure. What is the absolute pressure at the input end? (Assume atmospheric pressure is 1.013 105 Pa.)
Pa