Question

answer parts a-c please

VIS TV. - Due Date: 11/21/2019 11:59:00 PM End Date: 11/21/2019 11:59:00 PM (8%) Problem 2: The pump in a water tower raises water with a density of Pw - 1.00 kg/liter from a filtered tank at the base of the tower up hy 23 m to the top of the tower. The water begins at rest in the tank and comes to rest at the top of the tower. The pump is 100% efficient in lifting the water, and it raises a volume of V = 7.2 liters of water up the tower every second. The water tower sits on a bluff that is T. = 55 m above sea level. Let gravitational potential energy be ze 33% Part (a) Calculate the power, P, in Watts, of the pump. A 33% Part (b) If the pump runs for 2.1 hours, calculate the increase in the potential energy, AU, in Jof the water in the tower. A 33% Part (0) The water tower, when full, holds 10 liters of water. Calculate the gravitational potential energy of the water, U in J. of a full water tower relative to sea level.

Answer 1

Part -A Pocuer y mark done in unit time So, 7.2 liters of water has a mass of m=7.2 l x 1 kg/e -7.2 kg. i work done in 1 sa mgh J =(7-249-8 X 23) - 1622.88 J A Power = 1622.88 Watt. Tont-b increase in patential energy - det Power x time - (1622.88 x 2.1X3600) J = 12268972.8 J. te granitational portential energy = mgh 5 106x9.8% (55+23) J 106 litre water has mass = 7.644X108 J. of 108kg.