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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.
Why does the tilt of the Earth cause the seasons? It seems to me like the distance from the Earth to the Sun should cause the seasons.
Determine the maximum speed at which a load may be lifted and the maximum load capacity (in tonnes) of the winch. Frictional losses in the winch drum itself may be neglected.
The critical angle for total internal reflection for glycerine surrounded by air is 42.9°. Calculate the index of refraction of the substance
A circuit consists of a resistor in series with an inductor and an ac generator that supplies a voltage of 115 V. Find the average power delivered in the circuit
a flywheel of mass 181 kg has an effective radius of 0.63 m assume the mass is concentrated along a circumference
If one observes a very red celestial object, its color can be due to the temperature if being; a cold star or due to the very high speed which it moves away from us. EXPLAIN how spectral lines can be used to conclude one way or the other
A 1500 W radiant heater os ocnstructed to operate at 110V. How much thermal energy is produced in 1 hour by the heater
Design a Wilkinson power divider with a power division ratio of P3/P2 = 1/3 and a source impedance of 50 Ohm.
Which of the following response(s) will lead to a null vector (?F=0)? Adding a force 2 blocks up and another force ?13 blocks at 33.7° up and to the left. Adding a force 2?2 blocks at 45° to the left and down and another force ?2 blocks at 45° to the..
When responding to sound, the human eardrum vibrates about its equilibrium position. What is the maximum acceleration of the eardrum
Here is a displacement-time graph of an object which is not moving with simple harmonic motion. But it is still an oscillation and it has a period. period of oscillation
An apple falls from a tree and takes 4 s to reach the ground as reported by the earth-bound observer. how long did it take the apple to fall
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