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An ideal gas mixture with k 5 1.31 and a molecular weight of 23 is supplied to a converging nozzle at po 5 5 bar, To 5 700 K, which discharges into a region where the pressure is 1 bar. The exit area is 30 cm2. For steady isentropic flow through the nozzle, determine
(a) the exit temperature of the gas, in K.
(b) the exit velocity of the gas, in m/s.
(c) the mass flow rate, in kg/s.
a spherical balloon contains 2 kg of water at 230 degrees c 400 kpa the specific volume is 0.5951 m3kg. the balloon
one end of a tube is closed and the other is open. a 15 g projectile is placed near the closed end is fastened in place
steam expands in a turbine steadily at a rate of 25000 kgh entering at 6 mpa and 450? and leaving at 20 kpa as
A tire company has determined that its tires have a 1% premature rate of failure on the road. What is the chance that none of the 16 tires shipped to a retailer will have a premature failure?
If cable spacing is 1 m into the paper, what is the cable tension.
an axhaust stack thermocouple is inserted into a 20 cm long well made of 5mm-o.d. 0.7 mm-wall-thicknes aisi 316
an electric field is e400nci for xgt0 and e-400nci for xlt0. a cylinder of length 30cm and radius 10cm has its center
consider steady two-dimensional heat transfer in a rectangular cross section 60 cm x 30 cm with the prescribed
u.s. productivity has improved noticeably in recent years averaging 4 to 5 percent per year while the u.s. economy grew
2. What is the design objective? -to minimize the required power input to the compressors 3. What parameters does the design engineer control?
Estimate the slope dp/dt of the ice +water line using the triple point information. Specific entropy of ice at the triple point is -1221J/kgK , specific entropy of liquid water at triple point is 0.0 J/kgK. Determine therefore the temperature in Cels..
To ensure smooth action of the door as it reaches the vertical closed position () = 0, it is desirable that the door be insensitive to movement in this position - Determine the spring stiffness k required for this design.
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