7. The kinematic viscosity of a hydraulic oil is 0.0001 m/s. If it is flowing in a 30 mm diameter pipe at a velocity of 6 m/s, what is the Reynolds number? Is the flow laminar or turbulent? 8. A hydraulic motor has a volumetric efficiency of 90% and operates at a speed of 1750 rpm and a pressure of 1000 psi. If the actual flow rate consumed by the motor is 75 gpm and the actual torque delivered by the motor is 1300 in-lb, find the overall efficiency of the motor.