Answers: 1
Another question on Physics
Physics, 21.06.2019 19:10
Natural forces that can alter ecosystems include seasons and climate changes. t or f
Answers: 1
Physics, 22.06.2019 01:10
The 10-kg double wheel with radius of gyration of 125mm about o is connected to the spring of stiffness k = 600 n/m by a cord which is wrapped securely around the inner hub. if the wheel is released from rest on the incline with the spring stretched 225 mm, calculate the maximum velocity v of its center o during the ensuing motion. the wheel rolls without slipping
Answers: 1
Physics, 22.06.2019 02:30
If a refrigerator is a heat pump that follows the first law of thermodynamics, how much heat was removed from food inside of the refrigerator if it released 380j of energy to the room?
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
You know the right answer?
List and describe the three types of galaxies....
Questions
History, 21.03.2021 21:00
Mathematics, 21.03.2021 21:00
English, 21.03.2021 21:00
Chemistry, 21.03.2021 21:00
Mathematics, 21.03.2021 21:00
Business, 21.03.2021 21:00
Mathematics, 21.03.2021 21:00
English, 21.03.2021 21:00
Mathematics, 21.03.2021 21:00
Mathematics, 21.03.2021 21:00
