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An ice-making machine operates in a Carnot cycle. It takes heat from water at 0.0°C and rejects heat to a room at 22.5°C. Suppose that 69.0 kg of water at 0.0°C are converted to ice at 0.0°C.
(a) How much heat is discharged into the room?
(b) How much energy must be supplied to the device?
Two runners of mass 70 kg and 60 kg,respectively, have a total linear momentum of 350 kg*m/s. The heavier runner is running at 2.0m/s. Examine the possible velocitis of the lighter runner.
A boy shoves his stuffed toy zebra down a frictionless chute, starting at a height of 1.67 m above the bottom of the chute and with an initial speed of 1.97 m/s. The toy animal emerges horizontally from the bottom of the chute and continues sliding a..
find the coefficient of kinetic friction between the crates and the table.
A wooden rod of negligible mass and length 82.2 is pivoted about a horizontal axis through its center. A white rat with mass 0.440 clings to one end of the stick, and the mouse with mass 0.220 clings to the other end. The system is released from rest..
As a baseball is being thrown, it goes from 0.0 to 40.0 ms in 0.34 s, What is the acceleration of the baseball
The donor paid gift tax of $14,000 on the transfer. If Laura later sells the property for $110,000, illustrate what is her recognized gain or loss?
Explain how fast would it be moving after it had fallen a distance of 0.010 m? (Assume that the gravitational force is constant over the distance of the fall, and that the star is not rotating.)
What is the mass of the rim.
If a four-engine jet accelerates down the runway at 2 m/s2 and one of the jet engines fails, explain how much acceleration will the other three produce?
Determine the magnitude of the friction force. 5.80 g lead bullet traveling at 460 m/s is stopped by a large tree. If half the kinetic energy of the bullet is transformed into internal energy and remains with the bullet while the other half is tra..
If the partial pressure of water vapor is 47 mm Hg in the lungs at 760 mm Hg pressure, what percentage of air does the water vapor constitute?
what is the horizontal distance x between the two balloons.
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