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One way to put a steel wheel on a steel axel (for example on a railroad car) is to heat the wheel until it slides on the axel, then cool. Assume you have a 1 meter diameter steel wheel with a 10 cm diameter circular hole in the middle at room temperature (25 degrees C). You must put this on a 10.1 cm diameter axel. What temperature must the wheel be heated to? The linear thermal expansion coefficient for steel is 12*10^-6 degrees C^-1.
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two kg of a mixture having an analyis of on a mass basis of 30 nitrogen 40 carbon dioxide 30 oxygen is compressed
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