2. Two closed tanks 500 feet apart contain an oll (SG = 0.85,u = 100 cp) and are connected by a 3-in schedule 40 wrought iron pipe. The level in tank A is 20 feet above the level in tank B, and the gas pressure in the tank B is 10 psi higher than in tank A. What is the flow rate of oil flowing through the pipe in ft/min? a. b. Which way is the oil flowing