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A 1 m3 rocket-propellant chamber is tilled with combustion gases at 3000 K and 7 MPa at the instant combustion ceases. The throat area of the nozzle is 0.1 m2. Estimate the time it takes for the chamber pressure to drop to 0.7 MPa. Assume that at the instant combustion ceases, the chamber propellant supply stops completely, and also that gamma = 1.2 and M = 20.
a pressure transducer behaves as a second-order system. if the undamped natural frequency is 10 khz and the damping is
q1 write a matlab code which must have following inputs and outputsinputs1. an arbitrary geometry matrix2. basis
I would expect somthing like the requirement to execute the equation, please explain each term in the equation with its engineering units.
a rigid tank contains 7.5 kg of saturated water mixture at 400 kpa. a valve at the bottom of the tank is now opened and
design an al-si brazing filler alloy that will be used to join an al-mg alloy. the al-mg alloy has a solidus
in a piston cylinder device 5kg of air at 200kpa and 227oc is compressed to 500kpa at 100oc. determine the entropy
the specific volume of mercury is given by the equationvt v0 degree cx11.82x10-4t 7.8x10-9t t in degree csuppose that
an engineer is designing a system that requires transporting .01 m3s of helium at 15degc and 120 kpa. the velocity of
a walk-in cooler using a vapor compression refrigeration cycle is configured as shown below. the cycle uses cfc22 or
The school cafeteria has found that they go through 9 sandwiches for every 6 tickets they sell to the students. Today they have 558 sandwiches available. How many lunch tickets can they sell today?
a steady-flow compressor is used to compress helium from 15 psia and 70of at the inlet to 200 psia and 600of at the
the manometer shown above in problem 1 above contains water and kerosene. with both tubes open to the atmosphere, the free surface elevations differ by H=20mm determine the elevation difference when a pressure of 98.0 Pa is applied to the right.
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