Physics, 17.11.2020 14:00 ericadawn2852
What is a safe following distance between your automobile and the vehicle in front of you?
Answers: 2
Physics, 22.06.2019 03:30
As part of an industrial process, air as an ideal gas at 10 bar, 400k expands at steady state through a valve to a pressure of 4 bar. the mass flow rate of air is 0.5 kg/s. the air then passes through a heat exchanger where it is cooled to a temperature of 295k with negligible change in pressure. the valve can be modeled as a throttling process, and kinetic and potential energy effects can be neglected. (a) for a control volume enclosing the valve and heat exchanger and enough of the local surroundings that the heat transfer occurs at the ambient temperature of 295 k, determine the rate of entropy production, in kw/k. (b) if the expansion valve were replaced by an adiabatic turbine operating isentropically, what would be the entropy production? compare the results of parts (a) and (b) and discuss.
Answers: 3
Physics, 22.06.2019 09:30
(**i would really appreciate if this was answered soon** ) which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?
Answers: 3
Physics, 22.06.2019 11:00
The charge on an electron is 1.60218 ร 10โ19 c and its mass is 9.10939 ร 10โ31 kg. how strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.5 cm? answer in units of t.
Answers: 3
Physics, 22.06.2019 12:00
Explain why electric current cannot exist if a current doesn't have a voltage source.
Answers: 2
What is a safe following distance between your automobile and the vehicle in front of you?...
Mathematics, 12.06.2020 12:57
Mathematics, 12.06.2020 12:57
Mathematics, 12.06.2020 12:57
Mathematics, 12.06.2020 12:57
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Mathematics, 12.06.2020 12:57
Mathematics, 12.06.2020 12:57