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08-02-2024
Physics

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The area of cross-section of a railway track is 0.01m². The temperature variation is 10∘C. Coefficient of linear expansion of material of track is 10⁻⁵/∘C . The energy stored per meter in the track is ______ J/m. (Young's modulus of material of track is 1011Nm⁻²)

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