Physics, 12.11.2019 21:31 lilquongohard
Three balls with the same radius 19 cm are in water. ball 1 floats, with half of it exposed above the water level. ball 2, with a density 856 kg/m^3 is held below the surface by a cord anchored to the bottom of the container, so that it is fully submerged. ball 3, of density 1297 kg/m^2, is suspended from a rope so that it is fully submerged. assume the density of water is 1000 kg/m^3
Answers: 2
Physics, 22.06.2019 06:10
Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70βc. calculate the work (in kj) done during this process.
Answers: 3
Physics, 22.06.2019 06:30
2kg of refrigerant 134a undergoes a polytropic process in a piston-cylinder assembly from an initial state of saturated vapor at 2 bar to a final state of 12 bar, 80 degree c. a)determine the work for the process in kj. b)sketch the process on a p-v diagram.
Answers: 2
Physics, 22.06.2019 13:30
6β43 a food department is kept at 2128c by a refrigerator in an environment at 308c. the total heat gain to the food department is estimated to be 3300 kj/h and the heat rejection in the condenser is 4800 kj/h. determine the power input to the compressor, in kw and the cop of the refrigerator.
Answers: 2
Three balls with the same radius 19 cm are in water. ball 1 floats, with half of it exposed above th...
Computers and Technology, 06.09.2019 17:30
Computers and Technology, 06.09.2019 17:30