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A vapor-compression cycle refrigerator uses R-22 as the working fluid. The evaporator temperature is -20.0°C, the condenser temperature is 40.0°C, and the flow rate of R-22 is 0.100 kg/s. If the refrigerant exits the compressor as a saturated vapor and exits the condenser as a saturated liquid, determine
a. The isentropic coefficient of performance.
b. The equivalent reversed Carnot cycle coefficient of performance.
c. The amount of refrigeration (in tons) that this system can provide.
A car of mass 1430 kg traveling at 28 m/s is at the foot of a hill that rises 105 m in 3 km. Find the average power delivered by the car's engine
An air bubble has a volume of 1.50 cm3 when it is released by a submarine 100 m below the surface of a lake. What is the volume of the bubble when it reaches the surface
After some time elapses, the alligator's body temperature reaches a constant level. The rate of absorption is still 230 W. If the alligator loses heat with conduction and convection at a rate of 90 W, at what rate does it emit radiation?
A neutron of initial kinetic energy (Eini) scatters elastically from a target nucleus which is initiallt at rest. Find the maximum and average fractional kinetic energy loss F=1-(Efinal/Einitial)
An electron moves with a speed of 8.0 x 106 m/s along the +x-axis. It enters a region where there is a magnetic field of 2.5 T, directed at an angle of 60o to the +x-axis and lying in the xy-plane. (1 eV = 1.60 x 10-19 C, mel = 9.11 x 10-31 kg) Calcu..
You are standing on a scale inside an elevator. The scale reads 112 percent of your weight. What is the acceleration of the elevator
a uniform thin rod of length 0.60 m and mass 3.0 kg can rotate in a horizontal plane about a vertical axis through its
A grade school student plans to build a 34-power telescope as a science fair project. What focal length is needed for her objective lens
Assume that a parallel-plate capacitor has circular plates with radius R = 29 mm and a plate separation of 7.0 mm. Assume also that a sinusoidal potential difference with a maximum value of150 V and a frequency of 58 Hz is applied across the plates; ..
An unstable particle with a mass equal to 3.34 10-27 kg is initially at rest. Find the masses of the fragments
a container of ideal gas for which the thermal energy is given byeth 3.2 n r tis initially at pressure pi 1.7 x 105
an amusement park ride is designed such that riders experiance a total magnitude of no more than 30mss acceleration.
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