Physics, 06.10.2019 04:01, kobiemajak
A10-kilogram bicycle is traveling at a speed of 2 m/s. what is the bikes kinetic energy?
Answers: 1
Physics, 21.06.2019 20:20, hayesvolcano
How much work would a child do while puling a 12-kg wagon a distance of 3m with a 22 n force directed 30 degrees with respect to the horizontal? (a) 82j (b) 52j (c) 109j (d) 95j
Answers: 2
Physics, 21.06.2019 21:30, queenkimm26
Look at the potential energy diagram for a chemical reaction. which statement correctly describes the energy changes that occur in the forward reaction?
Answers: 1
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
A10-kilogram bicycle is traveling at a speed of 2 m/s. what is the bikes kinetic energy?...
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