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An engine absorbs 1.69 kJ from a hot reservoir at 277 °C and expels 1.24 kJ to a cold reservoir at 27 °C in each cycle.
(a) What is the engine's efficiency?
%
(b) How much work is done by the engine in each cycle?
J
(c) What is the power output of the engine if each cycle lasts 0.298 s?
kW
A snowmobile climbs a hill at 15 mi/hr. The hill has a grade of 1 ft rise for every 40 ft. How fast will the snowmobile move downhill
A liquid of density 1.13 × 103 kg/m3 flows steadily through a pipe of varying diameter and height. At location 1 along the pipe the flow speed is 9.89 m/s and the pipe diameter is 10.1 cm
A hill that has a 17.2 % grade is one that rises 17.2 m vertically for every 100.0 m of distance in the horizontal direction. At what angle is such a hill inclined above the horizontal?
A Carnot engine is operated between a hot and a cold reservoir. find the temperature of the cold reservoir
the elimination of the Linens Department will result in a 10% decrease in the sales of the Hardware Department. If the Linens Department is dropped, illustrate what will be the effect on the net operating income of the company as a whole?
Runner A is initially 8.0 mi west of a flagpole and is running with a constant velocity of 6.0 mi/h due east. How far are the runners from the flagpole
A photon with an initial wavelength of 1.150×10-11 m Compton scatters from an electron which is initially at rest. What is the energy of the incoming photon
A simple pendulum consists of a 4kg mass attached to a 3m long rope. At t=0 it is moving to the right at 0.4m/s. What is the angular frequency of the oscillation
Treating our rigid legged friend as a particle, what is the average force his feet exert on the ground as he slows down.
A particle with charge of 28.3 µC is placed at the center of a spherical shell of radius 27.5 cm. find the total electric flux through the surface of the shell
An oscillator with a mass of 530 g and a period of .80 s has amplitude that decreases by 2 percent during each complete oscillation. At what time will the energy be reduced to 33 percent of its initial value.
Two charged, parallel, flat conducting surfaces are spacedd=2.00cm apart, What is the initial speed of the electron if it stops just at the second surface
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