[1]- A fluid flowing in a pipe has 1.05 in diameter. If the fluid has density, viscosity and volumetric flow rate are 62.3r210m,1.2cP and 35gpm respectively. Calculate: a) The velocity. b) Reynolds number (uD) [2]- Find the following a) Drive an expression to find a pressure of methane gas at point E b) If the temperature of methane is 100F. Calculate pressure o methane gas at point 8 . c) Calculate pressure of oil at point C. [3]- If the water is pumped down one well and the displaced oil which flows up through well exit (see the fig below), drive an expression to find a pressure of inlet water Pw needed to displace oil when the water/oil interfacial tension is applied