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The hot gas supply to a propulsion nozzle is at a pressure of 55 kPa and a temperature of 800 K.
The ambient pressure is 15 kPa. If the ratio of specific heats is 1.33, approximately constant, and the molecular weight of the mixture is 30, determine the ratio of gross thrusts for two cases:
a. The nozzle is converging-diverging with the area ratio for correct expansion to ambient pressure.
b. The nozzle is converging only.
What is the nozzle-exit-to-throat area ratio for case (a)? The gross thrust is the contribution to engine thrust made by the exhaust nozzle only.
The fair rate of return on similar debentures is 14% before tax. Calculate the present value of the capital portion of the debenture.
find the best fit Gaussian Curve through the data and plot the data and curve on the same graph.
Which of the following is TRUE regarding a corporation? a. it is authorized by statute b. it is managed by the federal government
This course has covered American history from the presidency of Andrew Johnson to George W. Bush. In this period, 26 men served as president. In an essay of 500-600 words, which president do you think left the boldest mark on American History?
A square 3m x 3m gate is located in the 45* sloping side of a dam. Some measurements indicate that the resultant force of the water on the gate is 500kN.(a)Determine the preassure at the bottom of the gate.(b)Show on a sketch where this force acts..
Mrs. McBride can't consciously recall how frequently she criticizes her children because it would be too anxiety-arousing to do so. Sigmund Freud wuold have suggested that her poor memory illustrates:
what is the use of dimentionsless numbers, and why the temperature is max on gas turbine blade tip.
Using MATLAB Simulink, set up the negative feedback system of and find the value of the gain
Complete the Assurance of Learning Exercise. You will be asked to analyze and to compare and contrast the code of ethics of both Starbuck's and McDonald's. Summarize your analysis and findings
The piston is now unlocked so it is free to move, and it conducts heat so the air comes to a uniform temperature . Find the mass in both A and B, and the final T and P.
The separator produces 43,150 scf/d of 0.724 gravity gas, and the stock tank vents 7240 scf/d of 1.333 gravity gas. What is the formation volume factor of the oil? What is the solution gas-oil ratio? Which of the previous answers applies only at t..
Water at 200KPa with a quality of 25%has it temperature raised to 20degrees celcius in a constant pressure process. What is the new quality and volume?
your job is to create a design of Rankine cycle that create the most possible power from this heat source . you may use any working fluid for which you can find the properties , assume the turbines 92% efficient and pumps 85%
Product and Engineering Design Review
Evaluate the reduction in pump BHP required by heating the oil from 50° F to 100° F. Suppose efficiency of 80% (HP)
collar c moves along a circular guide with radius R=2ft with a constant speed v=18ft/s. at the instant, the bars AB and BC are vertical and horizontal respectively. Letting L=4ft and H=5ft, determine the angular acceleration of the bars AB and BC ..
What of diameter of steel rod is required to support a tension load of 44.5kn?assume that the allowable stress for the steel is F=165n/mm.
The direction of the forces are 0,-30 and +120 degrees from the positive X axis. Determine the magnitude and direction of the resultant force.
Get information about a car engine .drive the ideal performance using the appropriate cycle and compare to the actual performance.
The wheel of a crane lift is rolling on a flat rail. The radius of the wheel is 4 in, the contact length and force are 2.5 in and 1 ton respectively, and E = 30 MPa and ν = 0.3 for both parts. Determine (a) the maximum contact pressure, (b) the wi..
the snowmobile is traveling at 10m/s when it leaves the embankment at A.determine the speed at which it strikes the ground at B and its maximum acceleration along the trajectory AB.
Show how did you do the maintenance during your workshop
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