The gap between two plates is filled with a fluid of unknown viscosity. The top plate is moving to the right with a velocity of 10 m/s in response to a force of 3N. The distance between the plated is 1mm. If the cross-sectional area of the plate is 0.005 m2. Calculate the viscosity of the fluid. Express the answer in pa-s

Water in a partially filled large tank is to be supplied to the roof top, which is 8 m above the water level in the tank, through a 2.2-cm-internal-diameter pipe by maintaining a constant air pressure of 300 kpa (gage) in the tank. if the head loss in the piping is 2 m of water, determine the discharge rate of the supply of water to the roof top in liters per second.