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A Carnot engine operates between 27C and 927C and preforms 4800 J of work.
A. What is the efficiency of the engine?
B. Calculate the amount of heat energy (i) extracted from the hot reservoir and (ii) expelled to the cold reservior.
C. Calculate the net entropy change during one cycle?
A 1,576-kg car is moving down a road with a slope (grade) of 11% while speeding up at a rate of 3.6 m/s^2. What is the direction and magnitude of the frictional force
A plane accelerates from rest at a constant rate of 5.00 along a runway that is 1800 long. What is the time needed to take off
A 100-W lightbulb has a resistance of about 12 ? when cold (20 ?C) and 140? when on (hot). Estimate the temperature of the filament
When violet light of wavelength 415 nm falls on a single slit, it creates a central diffraction peak that is 8.80 cm wide on a screen that is 2.50m away
A concave mirror has a focal length of 20 cm. A paraxial beam of light coming from a distant object forms its image at the focal point. compute where is the final image
what was (a) the negative charge in coulombs on one of them and (b) the positive charge in coulombs on the other.
A 1.0 ball hangs from the ceiling of a truck by a 1.0--long string. The back of truck, where you are riding with the ball, has no windows and has been completely soundproofed. The truck travels along an exceedingly smooth test track, and you feel no ..
A wrecking ball (weight = 5010 N) is supported by a boom, which may be assumed to be uniform and has a weight of 3670 N. As the drawing shows, a support cable runs from the top of the boom to the tractor.
Three charged particles are arranged into a triangle. The charge on the particle located (4.0cm, 3.0cm) is 5nC. The charge on the particle at the origin is -3nC, and the change on the particle located at (4.0cm, 0cm) is +6nC. Determine the magnitu..
An experiment finds that standing waves on a 0.800-m-long string, fixed at both ends, occur at 24.0 Hz and 32.0 HZ, but at no frequencies in between. What is the wave speed on the string
A box with a volume of 3.9 L contains 4 molecules. By what factor is the total number of states for all molecules increased
The potential at location A is 393 V. A positively charged particle is released there from rest and arrives at location B with a speed vB. The potential at location C is 781 V, and when released from rest from this spot, the particle arrives at B wit..
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