(5%) Problem 15: The pump in a water tower lifts water with a density of p-1.00 kg/liter from a filtered pool at the bottom of the tower up hy-21 m to the top of the tower. The water begins at rest in the pool and comes to rest at the top of the tower. The pump is 100% efficient in lifting the water, and it lifts a volume of V 3.2 liters of water up the tower every second. The water tower sits on a hill that is T,= 1.5 m above sea level Let gravitational potential energy be zero at ground level. 33% Part (a) Calculate the power, Pp in Watts, of the pump P-1173.276 -1173 X Attempts Remain 33% Part (b) If the pump runs for 1.7 hours, calculate the increase in the potential energy, AU, in J, of the water in the tower U-12-10 -1.200 x 10 X Attempts Remain 33% Part (c) 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. U sino cotan() atan) cosh() Hints: 0% deduction per hint. Hists remaining 2 cos() asin tan() x ( acos() E sinh cotanh() acotan tinh) Degrees O Radians Hint M + T NO 7 8 45 1 2 3 0 9 HOVE 6 H DED CLEAR Frediec I give up! Feedback: 01 deduction per feedback Grade Summary Deductions Potential 04 100% Submissions Attempts remaining 19 ( per attempt) detailed view