Physics, 22.11.2019 07:31 lackin2056
You perform the hooke's law experiment and create a plot of displacement vs. force. you add a linear fit and find the following equation for the line: 0.192 0.011 what is the spring constant, k (in n/m or kg/s2)?
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 04:00
Determine the maximum r-value of the polar equation r =3+3 cos 0
Answers: 3
Physics, 22.06.2019 18:00
Which of the following is not a physical property of mattera. melting pointb.heat of combustionc. viscosityd. boiling point
Answers: 1
You perform the hooke's law experiment and create a plot of displacement vs. force. you add a linear...
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