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A ramjet is to propel an aircraft at Mach 3 at high altitude where the ambient pressure is 8.5Kpa and the ambient temperature Ta is 220 k. The turbine inlet temperature T is 2540 k.if all components of the engine are ideal - that is frictionless. Determine
The thermal efficiency, the Propulsion efficiency and the overall efficiency.
helium initially at 160degf and 30 psia is slowly withdrawn from a well-insulated rigid tank of volume 7 ft2 until the
An elevator descends from rest with an acceleration of 5 ft>s2 until it achieves a velocity of 15 ft>s. Determine the time required and the distance traveled.
a water line is planned to connect a new reservoir to an existing water treatment plant. the average water surface
long circular rod passes through the opening in an oven having air temperature of 400 and is pressed firmly onto the
refrigerant-134a at 240 kpa and 20 degree celsius undergoes an isothermal process in a closed system until its quality
a tank of 0.05 m3 volume air at 800 kpa absolute and 15 c. at t0 air begins escaping from the tank through a valve with
a 20-mm diameter rod made of a ductile material with a yield strength of 350 mpa is subjected to torque of 100 n.m and
Estimate the slope dp/dt of the ice +water line using the triple point information. Specific entropy of ice at the triple point is -1221J/kgK , specific entropy of liquid water at triple point is 0.0 J/kgK. Determine therefore the temperature in Cels..
a set of steel reinforcing rods is to be stretched axially in tension to create a tensile stress of 30ksi prior to
a piston-cylinder device contains 0.1 m3 of liquid water and 0.9 m3 of water vapor in equilibrium at 800 kpa. heat is
the pressure of a gas inside a piston-cylinder device is initially balanced by an atmospheric pressure of 100kpa and an
the lowest temperature that has been achieved is about 1 times 10-6 k. to achieve this an additional stage of cooling
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