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Steam enters a nozzle operating at steady state with p = 40 bar and T =400oC, and a velocity of 10 m/s. The steam flows through the nozzle with negligible heat transfer and no significant change in potential energy. At the exit, p2 = 15 bar and the velocity is 605 m/s. The mass flow rate is 2 kg/s. Determine the exit area of the nozzle.
consider the earth/atmosphere/ionosphere as an equivalent RC circuit with a total resistance of 230 ohm and a total capacitance of 2.9F. how long does this amount of discharge take in hours
The gauge pressure at the bottom of a reservoir is 5.0 times what it is at a depth of 1.8 m. How deep is the reservoir
A high-speed photograph of a club hitting a golf ball is shown in the figure below. The club was in contact with a ball, initially at rest, find the average force exerted on the ball by the club
Light from a laser falling on two slits produces the third-order fringe at an angle of 8.8 degrees. what is the distance between the two slits
A proton accelerates from rest in a uniform electric field of 675 N/C. At some later time, its speed is 1.35 106 m/s. (a) Find the magnitude of the acceleration of the proton.
After a satellite is blown apart, the first part has speed v1 = 0.63c and the second one has a speed v2 = 0.91c. what is the mass of the second piece
your friend gets a at tire while driving up a road with a 35.0 slope. While changing the tire he lets go of the spare and it begins to roll down the hill. How fast (m/s) is the tire moving when it hits the ..
A stationary detector sends out a sound wave of frequency 0.315 MHz toward an approaching car. What is the frequency of the waves reflected back to the detector
A wire has a resistance of 60.0 ohms, and is bent into a square loop with sides of length 15.0 cm. The loop is perpendicular to a magnetic field which is changing at a rate of 4.000e-3 T/s. What is the current induced in the wire?
A 7.9 kg ball that is originally 3.93 m above a spring is released from rest. How far will the spring compress when the ball lands on it
Two particles are fixed to an x axis: particle 1 of charge -4.18 × 10-7 C is at the origin and particle 2 of charge +4.18 × 10-7 C is at x2 = 13.9 cm. what is the magnitude of the net electric field
Two workers are trying to move a heavy crate. One pushes on the crate with a force , which has a magnitude of 485 newtons and is directed due west.
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