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A 520 W Carnot engine operates between constant-temperature reservoirs at 109°C and 67°C.
(a) What is the rate at which energy is taken in by the engine as heat?
(b) What is the rate at which energy is exhausted by the engine as heat?
A spring with spring constant 14 hangs from the ceiling. A ball is attached to the spring and allowed to come to rest. It is then pulled down 3.0 and released. The ball makes 17 oscillations in 16 seconds. What is it the mass of ball.
An aluminum ring needs to be placed over a cylinder steel bar. At 10.00 degrees C, Find the temperature of the ring at which it fits over the bar
What is the tangential acceleration of a bug on the rim of a 7 in. diameter disk if the disk moves from rest to an angular speed of 76 revolutions per minute in 4 s.
An empty boat is placed in a freshwater lake and a mark is painted on the hull at the waterline, a line corresponding to the surface of the water when the vessel is floating upright, where is the new waterline mark located on hull of the boat
If the car is going 55m/s, how many meters will it travel before it stops? How many meters will it takes to stop car going twice as fast.
A gray kangaroo can bound across level ground with each jump carrying it 9.2 from the takeoff point. what is the max height above the ground
Passengers in an auto traveling at 16.5 m/s toward the east hear a siren frequency of 863 Hz from an emergency vehicle approaching them from behind at a speed of 40.1 m/s
1 what is the lens equation? what do o i and f stand for in the equation?2 what are the five parts of the optical bench
A power line, running above the ground at the top of 8.0 m high poles, carries a current of 90 A. What is the magnitude of the magnetic field produced by this wire at the ground
If a Capacitance of PPC is 12 PF. Distance between its plates is reduced to half, What would the new capacitance of the capacitor
A disk released from the top of an inclined plane has a speed of 5.52 m/s at the bottom. How high is the upper end of the inclined plane
The intensity 18m from a source of sound is measured to be 10^-4W/m^2. Determine the intensity of the sound in decibels
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