Engineering, 08.10.2019 05:30 kelseatuttleni
The air contained in a room loses heat to the surroundings at a rate of 60 kj/min while work is supplied to the room by computer, tv, and lights at a rate of 1.2 kw. what is the net amount of energy change of the air in the room during a 10-min period? (hint: draw a sketch showing the energy flow directions and magnitudes.)
Answers: 1
Engineering, 04.07.2019 18:10, ashleybaber4966
If a particle moves along a path such that r : (3 sin t) m and ? : 2t rad, where t is in seconds. what is the particle's acceleration in m/s in 4 seconds? a)- 16.43 b)- 16.29 c)- 15.21 d)- 13.79
Answers: 1
Engineering, 04.07.2019 18:10, heidiburgos1own6c0
Fluids at rest possess no flow energy. a)- true b)- false
Answers: 3
Engineering, 04.07.2019 18:20, samantha636
Avolume of 2.65 m3 of air in a rigid, insulated container fitted with a paddle wheel is initially at 264 k, 5.6 bar. the air receives 432 kj by work from the paddle wheel. assuming the ideal gas model with cv = 0.71 kj/kg • k, determine for the air the amount of entropy produced, in kj/k
Answers: 2
The air contained in a room loses heat to the surroundings at a rate of 60 kj/min while work is supp...
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