A 2.0-kg object moving at 5.0 m/s encounters a 30-Newton restive force
over a duration of 0.10...
Answers: 1
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 18:10
A200-n force is applied to the foot-operated air pump. the return spring s exerts a 2.6-n·m moment on member oba for this position. determine the corresponding compression force c in the cylinder bd. if the diameter of the piston in the cylinder is 40 mm, estimate the air pressure generated for these conditions. state any assumptions. enter a positive number for the compression force c.
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Physics, 23.06.2019 03:30
First to answer will be the brainliest i need the answer asap
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Physics, 23.06.2019 06:00
Atoms in a molecule are bonded together by sharing gaining or losing_
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Mathematics, 01.03.2021 20:30
Mathematics, 01.03.2021 20:30
Social Studies, 01.03.2021 20:30
Mathematics, 01.03.2021 20:30
Mathematics, 01.03.2021 20:30
Mathematics, 01.03.2021 20:30
Mathematics, 01.03.2021 20:30
Mathematics, 01.03.2021 20:30
Mathematics, 01.03.2021 20:30
Mathematics, 01.03.2021 20:30