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Refrigerant-134a enters the evaporator coils placed at the back of the freezer section of a household refrigerator at 100 kPa with a quality of 20 percent and leaves at 100 kPa and -26°C. If the compressor consumes 400 W of power and the COP the refrigerator is 2.2, determine (a) the mass flow rate of the refrigerant and (b) the rate of heat rejected to the kitchen air.
liquid water is cooled at a constant pressure of 200 kpa in a piston-cylinder device from a temperature of 110 degc to
superheated steam at 120 bar and 520c leaves the steam generator of a vapor power plant and enters a turbine with an
a bug is on the rimof a disk of diameter 13 in that moves from rest to an angular speed of 70 revmin in 5.2 s.what is
the 3000 lb car and the 4600 lb tow truck are stationary. the muddy surface on which the car rest exerts a negligible friction force on the car. what is the tension in the tow cable.
an ideal vapor-compression refrigeration cycle that uses refrigerant-134a as its working fluid maintains a condenser at
steam at 900 degrees f and 1200 psi enters an insulated turbine operating at a steady state through a 4 foot diamter
a steel tensile specimen with starting gage length 2.0 in and cross-sectional area 0.5 in2 reaches a maximum load of
question 1approximate the torque and power necessary to rotate the inner 20 cm diameter cylinder shown in figure 1. sae
matt has perfected the art of bungee jumping such that from a bridge above a river he can fall and just touch the
a gas contained in a piston cylinder assembly undergoes a process from state 1 to state 2 defined by the following
a closed tank having a volume of 2ft3 is filled with 0.30 lb of a gas. a pressure gage attached to the tank reads 12
the motion of a particle is defined by the equations x10t-5sint and y10-5cost where x and y are expressed in feet and t
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