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A piano wire (Y=2.0 X 10^10 N/m^2) has a radius of 0.80-mm and a length of 0.76-m. One end of the wire is wrapped around a tuning peg whose radius is 1.8-mm. The other end is fixed in place. Initially, there is no tension in the wire. Find the tension when the tuning peg is turned through two turns.

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