Physics, 25.10.2019 22:43 genyjoannerubiera
Refrigerant 134a flows at steady state through a horizontal tube having an inside diameter of 0.05 m. the refrigerant enters the tube with a quality of 0.3, temperature of 36°c, and velocity of 12 m/s. the refrigerant exits the tube at 9 bar as a saturated liquid. determine: (a) the mass flow rate of the refrigerant, in kg/s. (b) the velocity of the refrigerant at the exit, in m/s. (c) the rate of heat transfer, in kw, and its associated direction with respect to the refrigerant.
Answers: 2
Physics, 22.06.2019 02:30
Eddy whose mass is 55kg climbs up the 1.50 meter high stairs in 2s.calculate eddy’s power rating
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Physics, 22.06.2019 09:00
Sobre transformações cÃclicas, são feitas algumas afirmações, determine quais estão corretas. i – a variação de energia interna em uma transformação cÃclica é nula; ii – o trabalho, em uma transformação cÃclica, é sempre positivo; iii – ao completar um ciclo, o gás tem a mesma temperatura com a qual começou a transformação; iv – uma transformação cÃclica é, obrigatoriamente, composta de transformações conhecidas, como adiabática, isocórica, etc: a) i e iii b) i e ii c) ii e iii d) i e iv e) iii e iv
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Physics, 22.06.2019 09:00
When a bicycle coasts uphill, it moves slower and slower as it climbs. why? a. its kinetic energy is transforming into heat energy. b. its potential energy is transforming into kinetic energy. c. its kinetic energy is transforming into potential energy and heat energy. d. its potential energy is transforming into kinetic energy and heat energy.
Answers: 1
Physics, 22.06.2019 14:30
Aweight lifter raises a 1600 n barbell to a height of 2.0 meters. how much work was done? w = fd a) 30 joules b) 3000 joules c) 320 joules d) 3200 joules
Answers: 2
Refrigerant 134a flows at steady state through a horizontal tube having an inside diameter of 0.05 m...
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