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[" 2.4Calculate the percentage increase ...

[" 2.4Calculate the percentage increase in length of a wire of diameter "2.5mm" stretched by a force of "],[100kg" weight.Young's modulus of elasticity of wire is "12.5times10''" dynelsq."cm.],[" 0.5Four identical cylindrical columns of steel support a big structure of mass "50,000kg" .The inner "],[" ex "]

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