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A cycle receives 500 Btu of heat at 1000°F and rejects 200 Btu of heat at 200°F. There is work input of 275 Btu and work output of 575 Btu.
a. What is the net work? Is it into or out of the cycle?
b. Compute the cycle efficiency.
c. Does this cycle violate the first or second law of thermodynamics? Is it reversible, irreversible, or impossible?
A Mercedes-Benz 300SL (m = 1700 kg) is parked on a road that rises 20° above the horizontal. What is the magnitude of the normal force
A helicopter lowers a rope with a seat at the end to resue someone. The seat has a mass of 4.4 kg. The person has a mass of 74.4 kg. How much tension will be on the rope
A parallel-plate capacitor is made from two aluminum-foil sheets, each 5.6 wide and 6.0long. evaluate the capacitance of this capacitor
A jetliner is moving at a speed of 216 m/s. The vertical component of the plane's velocity is 79.70 m/s. establishes the magnitude of the horizontal component of the plane's velocity.
Two figure skaters, one weighing 625N and the other 700N , How much kinetic energy is created during the skaters maneuver
The average value of the squared speed does not equal the square of the average speed. Calculate the average value of the squared speed
A plane sinusoidal electromagnetic wave carries 16.0 J of energy through a small window of area 0.20m2 in 10.0 s. What is the intensity of the wave
An elevator moves downward in a tall building at a constant speed of 4.35 m/s. Estimate the highest floor from which the bolt can fall
A racetrack has the shape of an inverted cone, as the drawing shows. On this surface the cars race in circles that are parallel to ground.
An experimental bicycle wheel is placed on a test stand so that it is free to turn on its axle. What is the torque supplied by friction
what is the direction of its velocity relative to the frame of reference.
A 50 kg block and a 100kg block are connected by string. the pulley is frictionless and of negligible mass. the coefficient of kinetic friction between the 50kg block and incline is 0.250. find the change in the kinetic energy of the 50kg block as..
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