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1. Acetylene at 50.0 psia, 65.0°F is accelerated through a converging-diverging nozzle isentropically until it reaches an exit pressure of 14.7 psia. Assuming the flow enters the nozzle with a negligibly small velocity, determine the exit Mach number, temperature, and exit to throat area ratio.
2. Carbon dioxide gas at 13.8 MPa, 20.0°C is expanded isentropically through a converging-diverging nozzle until its exit temperature reaches -100.°C. Assuming the flow enters with a negligible inlet velocity, determine the exit Mach number, pressure, and exit to throat area ratio.
On the way from a planet to a moon, astronauts reach a point where that moon's gravitational pull transitions from being weaker than that of the planet to being stronger than that of the planet. Determine the distance of this point from the center ..
What impact does the telephone have on the social organization, ideology, and values of this country? What about cell phones or the Internet?
Two soccer players start from rest, 47 m apart. They run directly toward each other, both players accelerating. How much time passes before the players collide
A 0.300-kg mass, attached to the end of a 0.750-m string, is whirled around in a smooth level table. If the highest tension that the string can withstand is 250 N, after that what highest linear speed can the mass have if the string is not to brea..
an election -1.6 x 10-19 moves 10 cm on a path perpendicular to the direction of a uniform electic field of strength
A 1.4kg block and a 2.7kg block are attached to opposite ends of a light rope. what is the acceleration of the lighter block
a spacecraft engine creates 55.1 mn of thrust with a propellant velocity of 4.88 kms. a find the rate dmdt at which the
An electric fan is running on HIGH. After fan has been running for 1.0 minutes, the LOW button is pushed. What was the initial angular speed of the fan in rev/sec
Nerve propagation in your body occurs when large electric field in the cell membranes on neurons (?1.0×107 N/C) cause ions to move through the cell walls. What is the acceleration that the ion can get from this electric force
A space station of mass 4.5 × 104-kg is to be constructed in the shape of a thin annular cylinder (or ring). The inner radius of the annular cylinder is 100-m, and the outer radius (and location of the floor) is 105-m. Artificial gravity equivalent t..
The crane pulls on the slab with a force of 4000N at an angle of 20o to the left of vertically upward. The only other force acting on the slab is the force of air resistance. What is the magnitude of the force of the air resistance? What is the di..
An athlete at a gymnasium holds a 3.0kg steel ball in his hand. His arm is 70cm long and has a mass of 4.0kg. Calculate the magnitude of the torque about his shoulder if he holds his arm
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