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A reversible power cycle whose thermal efficiency is 40% receives 50 kJ by heat transfer from a hot reservoir at 600 K and rejects energy by heat transfer to a cold reservoir at temperature TC. Determine the energy rejected, in kJ, and TC, in K.
steam enters a nozzle with a low velocity at 300f and 30 psi and leaves as saturated vapor at 10 psi. there is heat
a 3000 kg car a and 15000 kg freight car b are moving towards each other with velocities 20 kmh and 10 kmh
an adiabatic heat exchanger is used to heat cold water at 8 deg c entering at a rate of 3kgs by hot air at 150 deg c
A cooking pot whose inner diameter is 20 cm is filled with water and covered with a 4-kg lid. If the local atmospheric pressure is 101 kPa, determine the temperature at which the water starts boiling when it is heated.
atmospheric air at 10 psia and 70 f dry bulb has a relative humidity of 50. if the air is sensibly heated at a
a closed system contains 0.8 kg of air initially at 155 kpa with a volume of 0.45 m3. the system undergoes a polytropic
write an appraisal of mathcad including a comparison with mathlab. describe another feature of mathcad, giving examples of how it can be used.
Discuss the factors beyond crystal structure, quenching and temperature that affect he results of a specimen in a Charpy V notch impact testing.
a cylindrical duct supplies 1.20 kgs of combustion air at 150 c and 95.0 kpa to a furnace. if the velocity of the air
a car starts from rest with an acceleration of 1300 mih2 which remains constant until its velocity reaches 65 mph.
1. for each of the two proposed replacement presses determinenbspa. initial investment.nbspb. operating cash inflows.
an open gas turbine is equipped with a regenerator. the compressor is 87nbspefficient with air entering the compressor
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