Thank you for the opportunity to help you with your question!
when the temperature changes the the length will change by:
e = Lo.α.∆θ .. (in m)
α = coefficient.of linear expansion
Lo = original length in m
∆θ = temperature change in ºC
e = (518)(11.0^-6)(55) .. in .which ,e = 0.313 m
what you mean ,please let me know what you expected to be correct answer
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