A steel wire and a copper wire, each of diameter 2.000 mm, are joined end to end.
Question:
A steel wire and a copper wire, each of diameter 2.000 mm, are joined end to end. At 40.0°C, each has an unscratched length of 2.000 m; they are connected between two fixed supports 4.000 m apart on a tabletop, so that the steel wire extends from x = -2.000 m to x = 0, the copper wire extends from x = 0 to x = 2.000 m, and the tension is negligible. The temperature is then lowered to 20.0°C. At this lower temperature, find the tension in the wire and the x coordinate of the junction between the wires.
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At 200C the unstretched lengths of the steel and copper wires are L 200C 200...View the full answer
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