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Question: A convergent-divergent nozzle with an exit area to throat area ratio of 3 is supplied with air from a reservoir in which the pressure is 350 kPa. The air from the nozzle is discharged into another large reservoir. It is found that the flow leaving the nozzle exit is directed inward at an angle of 4° to the nozzle centerline. The velocity on the nozzle exit plane is supersonic. What is the pressure in the second reservoir?
The proposed design for anemometer to determine the velocity of an airstream in a wind tunnel is comprised of a thin metallic strip whose ends are supported by stiff rods serving as electrodes for a passage of current used to heat the strip.
An advanced type supercritical power plant has turbine inlet steam at 7000 psia and 1400F, double reheat at 1600 psia and 400 psia, both to 1200F, and condenser at 1psia. The three turbine sections have polytropic efficiencies of 0.93, 0.91 and 0.89 ..
Determine the minimum coefficient of static friction between the crate and the truck so that the crate does not slide relative to the truck.
The refrigerant R-410a is contained in a piston-cylinder device, as shown in the figure, where the volume is 13 L when the piston hits the stops. The initial state of the fluid is -30 °C, 150 kPa, with a volume of 10 L. The entire system is brought ..
is being deformed to a shear strain of 0.3. Assuming a constant dislocation density equal to 1010cm-2, what is the average distance each dislocation has to move?
If inventory carrying costs are $3 per unit per quarter, what is the annual cost of carrying this anticipation inventory? Opening and ending inventories are zero.
A trapezoidal channel with a bottom width of 4.00 feet and side slopes of 2 horizontal to 1 vertical conveys a discharge of 300 cfs. If the depth of flow is 2.25 feet, what is the Froude number? Is the flow subcritical or supercritical?
a pulley with diameter d 27in weighs 80 lb. it is mounted on a diameter d 2-in axle. a weight of 1000 lb is to be
determine the values of static temperature, static pressure, stagnation temperature, stagnation pressure, and velocity at the inlet [section (1)] and exit [section (2)] of the constant area duct. Sketch a temperature-entropy diagram for this flow.
a 0.2m3 rigid tank equipped with a pressure regulator contains steam at 2 mpa and 300 degrees c. the steam in the tank
a two-dimensional flow field is described by v-4yi-4xj. find a functional expression of the streamlines and sketch
the 2 mg car is being towed by a winch. if the winch exerts a force of t125s on the cable where 13m is the displacement
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