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A steel rod 25 cm long has a cross -sectiional area of 0.8cm^(2). What force wouyld be required to stretch this rod by the same amount as the expansion produced by heating it by 10^(@)C? Given that for steel coefficient of linear expansion and Young's modulus are given as alpha=1.1xx10^(-5).^(@)C^(-1) and Y=2xx10^(11)Nm^(-2) |
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