A glass container mass is 500gm, at a Temp of 20C. Water with a mass of 4kg and at Temp of 90C is dropped in the container,
determine the final Temp.

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.