Physics, 26.02.2021 22:40 guzmangisselle
Help me guys i em doing a test plz
During primary ecological succession, the initial formation of soil helps establish —
C. shrubs
D. trees
A. grasses
B. mushrooms
Answers: 3
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, 23.06.2019 01:10
Calculate 9 ∙ 10-5 divided by 3 ∙ 10-9. (box after the "10" in answer is for the
Answers: 1
Physics, 23.06.2019 08:00
Agust of wind pushes a beach ball with a force of 9 newtons. the ball rolls 10 meters in 3 seconds. what is the power of the wind? 900 w 90 w 30 w 3 w
Answers: 2
Help me guys i em doing a test plz
During primary ecological succession, the initial formation of s...
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