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A 0.072m X 0.045 m steel beam of length 3.7m is heated from 293Kelvin to 372Kelvin. What is the new length of the beam? What is the strain in the beam? if the beam is wedged between two walls when heated, what is the force the beam exerts on a wall after it's heated? The linear expansion coefficient for steel is 1.3X10^(-5) per degree celsius and Young's modulus for steel is 2X 10^(11) N/m^2

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