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The Eiffel Tower is a steel structure whose height increases by 19.5 cm when the temperature changes from -9 to +41 oC. What is the approximate height (in meters) at the lower temperature?

  • physics -

    ΔL=L₁-L = L+ΔL -L = αLΔt
    L= ΔL/ αΔt =0.195 m /12•10⁻⁶•50 =325 m

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