Rainfall rates for successive 20-minute periods of a 140-minute storm are 1.5, 1.5, 6.0, 4.0, 1.0, 0.8, and 3.2 inches/hour, totaling 6.0 inches. determine runoff during successive 20-minute periods by the nrcs method (i. e. curve number method). the soil in the basin belongs to group a. it is an agricultural row cropland with contoured pattern in good hydrologic condition. the soil is in average condition before the storm (moisture condition iii). (10 points)

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.

Afluid flows with a velocity field given by v=(x/t)i.. determine the local and convective accelerations when x=3 and t=1.

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.