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A mass of 2Kg is suspended from a fixed ...

A mass of `2Kg` is suspended from a fixed point by a wire of length `3m` and diameter `0.5 mm`. Initially the wire is just unstretched, the mass resting on a fixed support. By how much must the temperature fall if the mass is to be entirely supported by the wire (Given `Y` for wire `= 206 G Pa, alpha = 11 xx 10^(-6//@)C`)

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