A steel ring with a 2500 in diameter at 20 degrees celsius, Ask an Expert

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A steel ring with a 2.500 in diameter at 20 degrees Celsius is to he warned and slipped over a brass shafts with a 2.5030 in outside diameter at 20 degrees Celsius To what temperature should the ring be warmed?

If the ring and the shaft together are cooled by some means such as liquid air, at what temperature will the ring just slip off the shaft?

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