Physics, 09.11.2019 05:31, bryceisabeast6206
5.54 wp two kilograms of air within a piston–cylinder assembly execute a carnot power cycle with maximum and minimum temperatures of 750 k and 300 k, respectively. the heat transfer to the air during the isothermal expansion is 60 kj. at the end of the isothermal expansion the volume is 0.4 m3. assuming the ideal gas model for the air, determine a. the thermal efficiency. b. the pressure and volume at the beginning of the isothermal expansion, in kpa and m3, respectively. c. the work and heat transfer for each of the four processes, in kj. d. sketch the cycle on p–v coordinates.
Answers: 3
Physics, 21.06.2019 16:10, sruthivada
If two metal balls each have a charge of -10^-6 c and the repulsive force between them is 1 n, how far apart are they? (coulomb's constant is k = 9.0x 10^9 n-m^2/c^2? 9.5 m 9.0 mm 9.5 cm 0.9 m .
Answers: 3
Physics, 22.06.2019 02:30, itzyougirllona47
Herbivores, carnivores, and omnivores are all types a. decomposers b. producers c. consumers d. biomes
Answers: 2
Physics, 22.06.2019 12:30, spenceraniyah1
An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5×103 j and the energy transferred thermally out is 99.4×103 j. there are 1.5×1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1→2 b. 2→3 c. 4→1 d. 1→2 and 4→1 e. none of the above
Answers: 3
5.54 wp two kilograms of air within a piston–cylinder assembly execute a carnot power cycle with max...
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