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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 (contribution to engine thrust made by the exhaust nozzle only) for: a. The nozzle is converging-diverging with the area ratio for correct expansion to ambient pressure.
a particle a is pulled horizontally by a scotch-yoke with a constant velocity v along the elliptical slot given by the
the concrete slab of the basement is 11 m long 8 m wide and 0.20 m thick. during the winter temperatures are nominally
long circular rod passes through the opening in an oven having air temperature of 400 and is pressed firmly onto the
the system shown starts from rest and each component moves with a constant acceleration. if the relative acceleration
How many engagement points on the flywheel would be necessary to make this machine safe? Show your work.
Determine the COP of the heat pump that applies energy to a house at a rate of 4500kj/h for each kW of electric power it draws. Also, determine the rate of the energy absorption from the outdoor air.
the flux density of a magnetic field is 20000 lines per sq in. what length of conductor should cut the flux to produce
describe in an itemized list or flowchart the steps to solution to determine the probability of yielding if both the
If after 49.5 h the concentration of carbon is 0.35 wt% at a position 4.0 mm below the surface, determine the temperature at which the treatment was carried out.
a gear of mass 2.5kg rotates ar 1500rpm.due to an error in manufacture the centre of gravity of the wheel is displaced 0.5mm from the axis of rotation. calculate the out of balance force.
a piston-cylinder arrangement initially contains water at p 300 psia and t 500of. the piston is moved to a final
the eagle zr tire shown in the figure 1 is used on a corvette j with a test weight of 3500 lb. and having a 5248 weight
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