Oil of SG 0.9 and dynamic viscosity 0.9Pas flows through a long, horizontal pipe of 60mm diameter. If the pressure drop in 100m length of the pipe is 1800kPa. Determine 3.1 [5 Points] Volumetric flow rate and center line velocity. 3.2 [5 Points] Total friction drag force over 100m length 3.3 [5 Points] Power required to maintain the flow. 3.4 [5 Points] Velocity gradient at the pipe wall. 3.5 [5 Points] Velocity and shear stress at 8mm from the wall