The thing that is circled, correct me if im wrong please.
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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)
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Physics, 22.06.2019 10:30
An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.
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Physics, 22.06.2019 14:40
What is the orbital period of a spacecraft in a low orbit near the surface of mars? the radius of mars is 3.4×106m.
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Mathematics, 17.11.2020 22:00
English, 17.11.2020 22:00
History, 17.11.2020 22:00
Mathematics, 17.11.2020 22:00
Mathematics, 17.11.2020 22:00
History, 17.11.2020 22:00
Mathematics, 17.11.2020 22:00
History, 17.11.2020 22:00
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Mathematics, 17.11.2020 22:00