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An I beam is at 25 C and clamped rigidly between two fixed points, 2 meters apart, so that it can neither expand nor contract. The breaking stress of the beam is 200 MPa and the coefficient of linear expansion is 3.8 x 10^-5/oC and Young's Mod = 120 GPa. As the beam warms, at what temperature would the bar rupture? Answer in Celsius

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