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Steam at 800. psia, 600.°F expands through an uninsulated nozzle to a saturated vapor at 600. psia at a rate of 100. lbm/h. The surface temperature of the nozzle is measured and found to be 450.°F.
The entropy production rate of the nozzle is equal to 10.0% of the magnitude of the heat transport of entropy for the nozzle. The potential energies and the inlet velocity can be neglected, but the exit velocity cannot be neglected. Determine
a. The nozzle's heat transfer rate.
b. The nozzle's entropy production rate.
c. The nozzle's exit velocity.
d. The exit area of the nozzle.
A placekicker must kick a football from a point 36.0 m (about 40 yards) from the goal. By how much does the ball clear or fall short of clearing the crossbar? (Enter a negative answer if it falls short.
Two rods of equal length (0.55m) and diameter (1.7cm) are placed end to end. One rod is aluminum, the other is brass. how much does their combined length decrease
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A platinum resistance thermometer has a resistance of 100ohm at 0 deg and the value of alpha is 0.00385. Calculate the temperature
Find the speed of a satellite moving around the earth in a circular orbit that has a radius equal to four times the earth's radius of 6.38 multiply.gif 106 m.
Two pianos each sound the same note simultaneously, but they are both out of tune. On a day when the speed of sound is 347 m/s, How much time separates successive beats
a stream is 30m wide and its current is 1.5 m/s south. how far down the stream will the current push the boat
A compressive force of 2.7×104N is exerted on the end of a 24-cm-long bone of cross-sectional area 3.9cm2. By how much will the bone shorten
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