The ordinates at 1-hr intervals of a unit hydrograph are 260.3, 753.2, 1556.0, 1980.1, 1246.7, and 320.3 cfs/in. determine the direct runoff hydrograph from a 3-hr storm in which 0.6 inches of rainfall excess occurred in the 1st hour, 1.3 inches in the 2nd hour, and 0.3 inches in the 3rd hour. what is the area of the watershed in mi? ?

Liquid flows at steady state at a rate of 2 lb/'s through a pump, which operates to raise the elevation of the liquid 100 ft from control volume inlet to exit. the liquid specific enthalpy at the inlet is 40.09 btu/lb and at the exit is 40.94 btub. the pump requires 3 btu/s of power to operate. if kinetic energy effects are negligible and gravitational acceleration is 32.174 tt/s, the heat transfer rate associated with this steady state process is most closely 1)-2,02 btu/s from the liquid to the surroundings 2)-3.98 btu/s from the surroundings to the liquid. 3)-4.96 btu/s from the surroundings to the liquid. 4)-1.04 btu/s from the liquid to the surroundings.