Physics, 18.10.2019 07:30, cmfield9014
If you apply 100.0 n of force to lift an object with a single, fixed pulley, then what is the resistive force?
Answers: 3
Physics, 22.06.2019 03:30, zahradawkins2007
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
If you apply 100.0 n of force to lift an object with a single, fixed pulley, then what is the resist...
Mathematics, 01.12.2020 16:50
World Languages, 01.12.2020 16:50
Mathematics, 01.12.2020 16:50