Calculate the kinematic viscosity of an oil ,which is used for lubrication between a square plate of size 0.8m by 0.8 m and inclined at an angle 30 degres. The weight of the square plate is 300N. and it slides down the inclined plane with a uniform velocity of 0.6m/s. The thickness of oil film is 1.5 mm

An open feedwater heater operates at steady state with liquid entering at inlet 1 with t? = 40°c and pl = 1 .2 mpa. water vapor att2-200°c and p2 = 1.2 mpa enters at inlet 2. saturated liquid water exits with a pressure of pa 1.2 mpa. neglect heat transfer with the surroundings and all kinetic and potential energy effects, determine the mass flow rate of steam at inlet 2 if the mass flow rate of liquid water at inlet 1 is given as 2 kg/s.