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In a supersonic wind tunnel utilizing air similar to that shown in given Figure, the converging-diverging nozzle section has an inlet isentropic stagnation pressure of 3.20 atm.
The test section has a Mach number of 2.70, and the convergingdiverging diffuser section has an exit pressure of 1.00 atm. Determine the efficiency of the converging-diverging diffuser section.
Shoveling snow can be extremely taxing since the arms have such a low efficiency in this activity. What is her useful power output
The flywheel of a steam engine runs with a constant angular speed of 150 rev/min. When steam is shut off, the friction of the bearings stops the wheel in 2.7 h. (a) What is the constant angular acceleration, in revolutions per minute-squared, of t..
You hear a fire truck with a certain intensity, and you are about 1 mile away. Another person hears the same fire truck with an intensity that is about 10 times less. how far is the other person from the fire truck
Two identical loudspeakers that are 5.00 m apart and face toward each other are driven in phase by the same oscillator at a frequency of 875 Hz
A 300 kg piano slides 4.50 m down a 30° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is 0.40.
A thin spherical shell rolls down an incline without slipping. If the linear acceleration of the center of mass of the shell is0.27g, what is the angle the incline makes by the horizontal?
when 105 mL of water at 22 C is mixed with 68mL of water at 95 C, what is the final temperature? suppose no heat is lost to the surroundings and density of water is 1 g/mL.
q1. a 46 kg girl is standing on a 145 kg plank. the plank initially at rest is free to slide on a frozen lake which is
Two organ pipes, open at one end but closed at the other, are each 1.27m long. One is now lengthened by 2.00cm. Find the frequency of the beat they produce when playing together in their fundamental.
suppose a car is traveling at 16.3 ms and the driver sees a traffic light turn red. after 0.592 s has elapsed the
An electron is initially moving at a speed of 1740 m/s directly toward a long wire that has 2.00 A of current flowing through it. What are the direction and amount of the force
Tim and Rick both can run at a constant speed Vr and walk at the constant speed Vw, (Vw
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