D.25 A steam power generation system operates using a Rankine cycle. The water leaves the boiler as a saturated vapor at 3 MPa. The working fluid leaves the turbine and enters the condenser at 10 kPa. The pump has an isentropic efficiency of 85% and the turbine has an isentropic efficiency of 80%. Both can be considered adiabatic. You may assume a constant pressure boiler and condenser. a) Find the actual specific pump work. (kJ/kg) b) Find the actual specific turbine work (kJ/kg) c) Find the actual specific heat rejected from the condenser (kJ/kg)

1point) a skydiver weighing 130 lb (including equipment) falls vertically downward from an altitude of 14,000 ft and opens the parachute after 20 s of free fall. assume that the force of air resistance, which is directed opposite to the velocity, is of magnitude 0.85|v|0.85|v| when the parachute is closed and is of magnitude 17|v|17|v| when the parachute is open, where the velocity vv is measured in ft/s. assume that acceleration due to gravity has magnitude 32 ft/s/s; remember that weight is the product of mass and gravitational acceleration. find the speed of the skydiver when the parachute opens. speed is 150.6121788 ft/s find the skydiver's height when the parachute opens. height is 2338.98591 ft find the limiting velocity vlvl after the parachute opens. (think about whether this should be positive or negative.) vl=vl= 7.647 ft/s

Where do magnetic lines of force enter earth?

What ia the energy of an object because of its potential and kinetic energies