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1. Steam enters the turbine of a Rankine cycle power plant at 200. psia and 500.°F. How much will the isentropic Rankine cycle thermal efficiency increase if the condenser pressure is lowered from 14.7 psia to 1.00 psia? Neglect the pump work.
2. A small portable nuclear-powered Rankine cycle steam power plant has a turbine inlet state of 200. psia, 600.°F, and a condenser temperature of 80.0°F. The steam mass flow rate is 0.500 lbm/s. Assuming that the condenser exit state is a saturated liquid, that the pump and turbine isentropic efficiencies are 55.0% and 75.0%, respectively, and that there are no pressure losses across the boiler or condenser, determine
a. The actual power required to drive the pump.
b. The actual power output of the plant.
c. The actual thermal efficiency of the plant.
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A batter hits a fly ball which leaves the bat 0.88above the ground at an angle of 62 with an initial speed of 28 heading toward centerfield. Ignore air resistance. How far from home plate would the ball land if not caught? T
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A supertrain of proper length 205 m travels at a speed of 0.87c as it passes through a tunnel having proper length 74 m. How much longer is the tunnel
Consider a gas of neutrons in a nuclear reactor. The neutron density is 10^8 neutrons/cm^3 in an operating reactor which has a core temperature of 535K. Are the neutrons in the reactor core a classical gas or a quantum mechanical gas and how ca n yo..
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