A watershed is divided into two sub-basins A and B. The surface runoff from sub-basin A enters a channel at point 1 and flows to point 2 where the runoff from sub-basin B is added to the hydrograph and the combined flow is then routed through a reservoir. a. Determine the discharge hydrograph from the reservoir assuming that the reservoir is initially empty (i. e. no baseflow). (Only plot up to hour 12). Also, provide ERH and SHG plots for each sub-basinb. What are the areas of sub-basins A and B in square miles?

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.