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Consider a rocket engine that burns hydrogen and oxygen. The combustion chamber temperature and pressure are 3800 K and 1.5 MPa respectively, the velocity in the combustion chamber being very low. The pressure on the nozzle exit plane is 1.5 kPa. Assuming that the flow is isentropic, find the Mach number and the velocity on the exit plane. Assume that the products of combustion behave as a perfect gas with ? = 1.22 and R = 519.6 J/kg/K.
The car travels up the hill with a speed of v = (0.4s) m/s, where s is in meters, measured from A. Determine the magnitude of its acceleration when it is at point s = 50 m, where p = 500 m.
two moist air streams flow into a modified cooling tower to cool liquid water from 120 f to 75 f. the first moist air
a classroom is occupied by 55 students and one instructor each generating heat at a rate of 100 w. lighting is provided
a room that normally contains 40 people is to be air-conditioned with window air- conditioning units of 5-kw cooling
air enters a compressor at 179 kpa and 290 k and exits at a temperature of 500.9 k. determine the power kw for the
a simple steam power plant operates on 20 kgs of steam. heat transfer to the steam in the boiler is 69 mw and heat
1-what are the adavanteges and disadvantages of project managment?2-what are the key charactristics all project
Estimate a value for the convective coefficient, h, with the basis of your estimate and show a diagram with the energy fluxes on the pipe.
steam in a piston-cylinder assembly undergoes a polytropic process with n2 from an initial state where p 500 psia and
assuming that the solid shaft has been replaced by a hollow shaft of the same cross-sectional area and with an inner diameter equal to half of its own outer diameter.
a certain industrial process requires a steady stream of saturated vapor steam at 200 kpa at the rate of 2 kgs. there
calculate the radius of a vanadium atom given that v has a bcc crystal structure a density of 5.96gcm3 and an atomic
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