Question 19 of 20 A driver speeds along a level race track, then takes her foot off the gas pedal. Why does the car eventually come to a stop? 0 A. The car's kinetic energy is transformed into thermal energy by friction, B. The car's kinetic energy is transformed into gravitational potential energy. O c. The car's kinetic energy is eventually used up. O D. The car's kinetic energy is transformed back into chemical potential energy that is stored in the fuel.​

Which statement best explains why an object weight less on mercury than it does on earth

Jessie ran 5000 meters from the cops and an average speed of 6 meters / second before he got caught . how long did he run?

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.