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1. A converging-diverging nozzle operates at steady state. Air as an ideal gas with k 5 1.4 enters the nozzle at 500 K, 6 bar, and a Mach number of 0.3. The air flows isentropically to the exit plane, where a normal shock stands. The temperature just upstream of the shock is 380.416 K. Determine the back pressure, in bar.
2. A converging-diverging nozzle operates at steady state. Air as an ideal gas with k 5 1.4 enters the nozzle at 500 K, 6 bar, and a Mach number of 0.3. A normal shock stands in the diverging section at a location where the Mach number 1.40. The cross-sectional areas of the throat and the exit plane are 4 cm2 and 6 cm2, respectively. The flow is isentropic, except where the shock stands. Determine the exit pressure, in bar, and the mass flow rate, in kg/s.
Vector integral - stokes therom, Evaluate the line integral by stokes theorem (clock wise as seen by a person standing at the origin).
an arrow is shot straight up in the air with an initial speed of 210 fts. if on striking the ground it embeds itself
Compute a stationary spot price equilibrium, (x0 , x1, P(r), r , G, T), with nonnegative interest rate r and with P1(r) + P2(r) = 1. Does the ratio P1(r)/P2(r) increase, decrease, or remain constant as r increases? Give an intuitive explanation for w..
an airplane is flying due south at 500 miles per hour at 35000 feet altitude straight and horizontally. a second
Considering the flow of a uniform stream of speed V in the x-direction, a source of strength Q at (-1,0) and sink of strength Q at (1,0). Find the velocity potential and the stagnation points
Determine the minimum no of teeth required on pinion in order to avoid interference which is to gear with 1 a wheel to give a gear ratio of 3 to 1
nitrogen and hydrogen are mixed in a steady-flow adiabatic process in the ratio of 4kg of nitrogen per kg of hydrogen.
Double-pipe heat exchanger. This type of heat exchanger is composed of concentric pipes, with hot water flowing in the inner pipe while cold water flows in the annulus between the inner pipe wall and outer pipe wall.
How much money can be saved for 15,000 miles of driving per year and how much gasoline per year is being converted if one million people use the E20 fuel?
1-kg of air at 200 kpa and 127 deg c is contained in a piston-cylinder device. air is now allowed to expand in a
What is the acceleration of the aircraft (in m/s2)? How long does it take the aircraft to reach its take-off speed?
consider a steam turbine in which steam enters at 10.45 mpa and 780k with a flow rate of 38.739 kgs. a portion of the
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