Steel wire

A steel wire of length \(4.7\ m\) and cross sectional area \(3.0 \times 10^{-5}\ m^2\) stretches by the same amount as a copper wire of length \(3.5\ m\) and cross sectional area of \(4.0 \times 10^{-5} \ m^2\) under a given load. What is the ratio of the Young's modulus of steel to that of copper?


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