Alarge food processing plant requires 2 lbm/s or saturated or slightly superheated steam at 80 psi, which is extracted from the turbine of a cogeneration plant. the boiler generates steam at 1000 psi and 1000of at a rate of 5lbm/s, and the condenser pressure is 2 psi. steam leaves the process heater as a saturated liquid. it is then mixed with the feedwater at the same pressure and this mixture is pumped to the boiler pressure. assuming both the pumps and the turbine have isentropic efficiencies of 86 percent, determine a) the rate of heat transfer to the boiler and b) the power output of the cogeneration plant in kw.

Abasketball star covers 2.65 m horizontally in a jump to dunk the ball. his motion through space can be modeled precisely as that of a particle at his center of mass. his center of mass is at elevation 1.02 m when he leaves the floor. it reaches a maximum height of 1.90 m above the floor and is at elevation 0.910 m when he touches down again. (a) determine his time of flight (his "hang time"). (b) determine his horizontal velocity at the instant of takeoff. (c) determine his vertical velocity at the instant of takeoff. (d) determine his takeoff angle. (e) for comparison, determine the hang time of a whitetail deer making a jump with center-of-mass elevations yi = 1.20 m, ymax = 2.45 m, and yf = 0.750 m.