Physics, 02.03.2021 21:10, calebabaltimore
On October 15, 1997, a car called Thrust SSC set a new land speed record. It travelled 763 mph for a mile and became the first car to officially break the sound barrier. The Thrust SSC propels itself forward with two jet engines made by Rolls Royce, the same engines found in the British version of the Phantom II fighter jet. The propulsion system on the Thrust SSC is unique in that it does not rely on friction between the tires and the ground for its forward motion. Instead, the jet engines provide the force. Is it possible to make it even faster?β
Answers: 2
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
Physics, 22.06.2019 18:30, wapattersons
What would people living along the coast in south florida do if there was a hurricane warning? move to locations away from the water flock along coasts to watch the natural phenomenon buy instruments to predict the exact location of the hurricane measure water levels to know the exact time of the hurricane
Answers: 3
Physics, 22.06.2019 19:00, bradleycawley02
What is the gravitational attraction between a dating couple whose centers of mass are 0.630 m apart if the boy weighs 715 n and the girl weighs 465 n?
Answers: 3
On October 15, 1997, a car called Thrust SSC set a new land speed record. It travelled 763 mph for a...
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