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Air enters an adiabatic nozzle at 60 psia and 1020°F with low velocity and exits at 800 ft/s. If the isentropic efficiency of the nozzle is 90 percent, determine the exit temperature and pressure of the air.
the displacement vectors 46.0 cm at 15.0deg and 23.0 cm at 56.0deg both start from the origin and form two sides of a
1 use boltzmann distribution to mathematically show that a two level laser system is not possible. calculate the ratio
Steam at 75 kPa and 13 percent quality is contained in a spring-loaded piston-cylinder device, as shown in the figure, with an initial volume of 5.28 m^3. Steam is now heated until its volume is 13.20 m^3 and its pressure is 300 kPa. Determine the he..
a car moves along an x axis through a distance of 990 m starting at rest at x 0 and ending at rest at x 990 m.
a laminated thick-walled hydraulic cylinder was fabricated by shrink-fitting a steel e 200 gpa and v 0.30 jacket
the composite beam is made of a-36 steel a bonded to c83400 red brass b and has the cross section shown. if it is
A piston-cylinder device holds 2 kg of refrigerant fluid R-134a, initially at 500 KPa. At this state, 0.5 kg of the fluid is in the liquid phase. Heat is then added to the fluid at constant pressure to increase its temperature to 60 c.
an ideal gas contained in s piston-cylinder device undergoes and isothermal compression process which begins with an
a single degree of freedom translational vibrating system has a concentrated mass weighing 77.2 lbs a spring constant
A house is kept at 22oC in the winter by means of electric heaters. On a cold day, the heaters are on for 18 hours and use an average power of 5 kW. How much power would be saved if a heat pump with a COP of 2.0 was to be used instead?
a room with 42 kg of dry air has 1 kg of water vapor. if the enthalpy of the water vapor at 31 deg celcius is 3406 kjkg
a tank with a volume of 1 m3 is filled with 10 kg of water. with a pressure of 1.1 mpa in the tank the water is a
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