A steady-flow water power plant has the following inlet and outlet conditions: Inlet Outlet Pressure, psig 0 0 Elevation, ft 75 0 Velocity, ft/s 400 50 Temperature, °F 70.0 70.1 The plant is adiabatic (heat does not enter or leave the system). How much work does it deliver per lbm of fluid flowing through? (12 points)

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.