Assuming the input is Vin= 3 + 5cos(wt+30◦), when it passes through a highpass filter, what is the magnitude of DC component in the output? (omit the unit (volts) of your answer, just submit the number)

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.