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A steel wire of length 4.7m and cross se...

A steel wire of length `4.7m` and cross sectional area `2xx10^-5m^2` stretches by the same amount as a copper wire of length `3.5m` and cross sectional area of `4xx10^-5m^2` under a given load. What is the ratio of the Young's modulus of steel to that of copper?

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