Ajet of water exiting through a nozzle is deflected by a curved plate at 60°, the velocity of the jet at the outlet of the nozzle is 30 m /s and it comes out at a speed of 25 m /s. if the mass flow leaving the nozzle is 0.8 kg /s. calculate the magnitude and direction of the resultant force on the plate if the plate is fixed

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.