(14%) Problem 7: A sump pump (used to drain water from the basement of houses built below the water table) is draining a flooded basement at the rate of 8.75 L/s, with an output pressure of $1.9 \times 10^5$ Pa.
50% Part (a) The water enters a hose with a 2.5 cm inside diameter and rises 2.5 m above the pump. What is its pressure at this point, in pascals? You may neglect frictional losses.
$P_2 = 2.08 \times 10^5$
50% Part (b) The hose then goes over the foundation wall, losing 0.65 m in height, and widens to 5.6 cm in diameter. What is the pressure now, in pascals? You may neglect frictional losses.
$P_3 = 2.145 \times 10^5$