A watershed has a drainage area of 200 acres with a slope of 4%. During storm events, overland flows occur with a flow length of 2700 ft. The watershed is characterized as a short grain pasture. It consists of subbasins A and B. Subbasin A has a drainage area of 80 acres with a runoff coefficient of 0.3 and Subbasin B has a drainage area of 120 acres with a ruoff coefficient of 0.4. Calculate the peak discharge at the watershed out

Along 8-cm diameter steam pipe whose external surface temperature is 900c connects two buildings. the pipe is exposed to ambient air at 70c with a wind speed of 50 km/hr blowing across the pipe. determine the heat loss from the pipe per unit length. (b) air at 500c enters a section of a rectangular duct (15 cm x 20 cm) at an average velocity of 7 m/s. if the walls of the duct are maintained at 100c. a) the length of the tube for an exit temperature of the air to be 40 0c. b)the rate of heat transfer from the air. c) the fan power needed to overcome the pressure drop in this section of the duct.