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Thecoaster cars are lifted up the initial hill, which has a height of 85 feet, and released at the top of the hill with a speed of 5 ft/s. The track has a running length of 4200 feet. A fully loaded car has a weight of 4500 lb and friction/wind resistance impose anaverage force of 62lb on the coaster car throughout the ride. (a) Determine the speed of the coaster car as it completes the run (back at ground level after traveling the entire track length). (b) A magnetic brake system is used to slow the car to a speed of 2.5 ft/s at the end of the ride. If this brake applies a force of 1400lbs, what length of track is required for the braking system to accomplish this task?
Calculate the concentration (in weight percent) of molybdenum that must be added to tungsten to yield an alloy that contains 1.51 x 1022 Mo atoms per cubic centimeter.
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when the efficiency of an otto cycle will approach that of carnot cycle? even with nest possible arrangements the
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a horizontal cantilever of length l supports a load w uniformly distributed along its length. the cantilever is proped
Hazen-Williams Formula- Find the Diameter of a Pipe, The length of cast-iron pipe is to be 4200 ft., and the head causing flow is to be 12.6ft. After the pipe has been in service 5 years, it is expected to discharge water at a rate equal to 3.2 cf..
Important information about Compressive Stress, A circular cross sectional bar with a diameter of 3.25 inches is loaded with a uniform axial compressive load of 22,750 pounds. What is the compressive stress along a cross section of the bar?
a single acting air motor has a bore of 380mm and stroke of 610mm. the supply pressure and temperature is 6.2 bar and
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