Physics, 06.03.2021 01:00 Michael845313
A 300 gram lead ball with a temperature of 80°C is placed in 300 grams of water at a
temperature of 20°C. The specific heat capacity of lead is 16 J/gºC and the specific heat
capacity of water is 4.18 J/gºC. When the system reaches equilibrium what is the equilibrium
temperature?
Answers: 1
Physics, 21.06.2019 18:00
What happens to the velocity of the car when the upward pull of the cable is greater than the downward pull of gravity as the car rises toward the top?
Answers: 1
Physics, 22.06.2019 06:30
Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)
Answers: 1
Physics, 22.06.2019 17:00
Air conditioners not only cool air, but dry it as well. suppose that a room in a home measures 5.0m×9.0m×2.4m . if the outdoor temperature is 30 ∘c and the vapor pressure of water in the air is 85 % of the vapor pressure of water at this temperature, what mass of water must be removed from the air each time the volume of air in the room is cycled through the air conditioner? the vapor pressure for water at 30 ∘c is 31.8 torr.
Answers: 3
A 300 gram lead ball with a temperature of 80°C is placed in 300 grams of water at a
temperature of...
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