Physics, 08.04.2021 01:00 hallmansean04
Draw Conclusions 3. Summarize the effect of various factors on the period of the pendulum or the spring that you tested.
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How many molecules are present in 3 mols of silicon dioxide (sio2)?
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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.
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Physics, 22.06.2019 08:30
Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?
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Physics, 22.06.2019 09:30
Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?
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Draw Conclusions
3. Summarize the effect of various factors on the period of the pendulum or the sp...
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