Steam at a pressure of 15 bar and a temperature of 320oc is contained in a large vessel. connected to the vessel through a valve is a turbine followed by a small initially evacuated tank with a volume of 0.6 m3. when emergency power is required, the valve is opened and the tank fills with steam until the pressure is 15 bar. the temperature in the tank is then 400oc. the filling process takes place adiabatically and kinetic and potential energy effects are negligible. determine the amount of work developed by the turbine, in kj.

16. a brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 800 n on him. the mass of the losing player plus equipment is 90.0 kg, and he is accelerating at 1.20m/s2 size 12{1 "." "20"" m/s" rsup { size 8{2} } } {} backward. (a) what is the force of friction between the losing player’s feet and the grass? (b) what force does the winning player exert on the ground to move forward if his mass plus equipment is 110 kg? (c) draw a sketch of the situation showing the system of interest used to solve each part. for this situation, draw a free-body diagram and write the net force equation.