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Question: A supersonic nozzle possessing an area ratio of 3.0 is supplied from a large reservoir and is allowed to exhaust to atmospheric pressure. Determine the range of reservoir pressures over which a normal shock will appear in the nozzle. For what value of reservoir pressure will the nozzle be perfectly expanded, with supersonic flow at the exit plane? Find the minimum reservoir pressure to produce sonic flow at the nozzle throat. Assume isentropic flow except for shocks with γ = 1.4.
In air-conditioning systems, streams of cold and warm air are mixed to get air with the right temperature. Consider a mixing chamber into which cold air enters at 8C and 100 kPa at a rate of 0.55 m^3 /s and warm air enters at 300C and 100 kPa. The ra..
What are the limitations of scanning tunneling microscope in nanofabrication that inhibit its commercial application?
A roller cam is used to impart a periodic motion to the base of the spring-mass system shown in Fig. 4.41. If the coefficient of friction between the mass and the surface is µ find the response of the system using the principle of superposition. D..
In an experiment, the temperature of a hot gas stream is to be measured by a thermocouple with a spherical junction. Due to the nature of this experiment, the response time of the thermocouple to register 99% of the initial temperature difference ..
At a certain instant, gyrosensors on an airplane report that it is heading 40 degrees west of north, climbing at an angle of 20 degrees, and that its wings are banked at an angle 10 degrees clockwise as looking forward (along the axis of the plane). ..
Analyze the robustness of your facility by assuming that each of the unit operations (including conveyors) goes down-one at a time. Can your facility still function?
1.) Answer the following questions. a.) Briefly describe the problem resulting from the overaging of a precipitation hardened alloy. b.) At what temperature does a 5.0wt% Cu-Al alloy completely solidify when slowly cooled from 700oC? c.) What is the ..
a 3-ft-diameter duct is used to carry ventilating air into a vehicular tunnel at a rate of 9000 ft3min. tests show that
based on observations the speed of a jogger can be approximated problems 617 by the relation v 5 7.51 2 0.04x0.3 where
A heat engine rejects heat to the atmosphere. The temperature of the atmosphere is 80 F. Saturated liquid water enters the boiler at a rate of 1000 lbm/hour with pressure of 250 psia. The water exits the boiler as a saturated vapor at the same pressu..
an adiabatic air compressor receives ambient air at 300k and 100 kpa and compresses it to 1000 kpa. if the isentropic
an insulated rigid container is separated into two parts using a partition that is free to move and the partition
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