How much work is required
Question: A skier of mass 70kg is pulled up a slope by a motor driven cable. How much work is required to pull him 60m up a 30 degrees slope, assuming its frictionless, at a constant speed of 2.0m/s?
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A skier of mass 70kg is pulled up a slope by a motor driven cable. How much work is required to pull him 60m up a 30 degrees slope, assuming its frictionless, at a constant speed of 2.0m/s?
A family is canoeing downstream (with the current). Their speed relative to the banks of the river averages 2.75 mi/h. Write an equation for the rate of the canoe downstream.
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A heat engine utilizes a heat source at 580 degrees Celsius and has an ideal (Carnot) efficiency of 28%, to increase the ideal efficiency to 34%, what must be the temperature of the heat source?
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