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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 factory worker pushes a 30.2kg crate a distance of 4.5m along a level floor at constant velocity by pushing downward
Consider an electron moving with a speed of 8.60 106 m/s at right angles to a constant magnetic field, with B = 1.9 T
A 1500 Kg car takes 45 minutes to climb from an elevationof 1800 m to 2800m, as the car drives along a mountain road. How much work did the car do against gravity
To decide the speen of a harmonic oscillator, a beam of sound is sent along the line of the oscillator's motion. The sound, which is emitted at a frequency of 8000.0 Hz, is reflected straight back by the oscillator to a detector system.
A chemist uses a mass spectrometer to determine the amounts of specific kinds of air pollution in an air sample. What is the diameter of the circular path of NO (nitrous oxide) molecules
A horizontal force of magnitude 36.4 N pushes a block of mass3.81 kg across a floor where the coefficient of kinetic friction is0.640. find the increase in the kineticenergy of the block
A dedicated sports car enthusiast polishes the inside and outsidesurfaces of a hubcap that is a section of a sphere. When he looksinto one side of the hubcap, he sees an image of hisface 26.0 cm in back of the hubcap.
A microscope has an eyepiece of focal length 2.10 cm and an objective of focal length 4.10 cm. How far from the eyepiece is the image formed by the objective
A ball is launched straight up with a speed of 25.27 miles per hour. What is the maximum height reached in meters
The intensity of sunlight at the top of the earth's atmosphereis about 1390 W/m2.The distance between the sun and earth is 1.50 x 1011m, What is the intensity of sunlight that reaches the probe
the earths magnetic dipole moment is 81022 am2.a. what is the magnetic field strength on the surface of the earth at
A certain rain cloud at an altitude of 1.90 kilometer contains 3.20 x 107 kilogram of water vapor. Determine how long would it take for a 3.17-kW pump to raise the amount of water
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