The 30-min unit hydrograph for an urban catchment is given by Time (min) Runoff (m3 /s) Time (min) Runoff (m3 /s) 0 0.0 210 0.66 30 1.4 240 0.49 60 3.2 270 0.36 90 1.5 300 0.28 120 1.2 330 0.25 150 1.1 360 0.17 180 1.0 390 0.00 The following 120-min storm occurs: Time (min) Rainfall excess (cm) 0-30 2.4 30-60 1.5 60-90 3.1 90-120 2.0 Determine the peak runoff (m3 /s) generated by this 120-min storm..

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.