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physics

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A steel section of the Alaskan pipeline had a length of 65 m and a temperature of 22° C when it was installed. What is its change in length when the temperature drops to a frigid -37° C?

  • physics -

    ΔL = αLΔT
    α =12 •10⁻⁶ °C⁻¹
    ΔL = 12 •10⁻⁶•65•( -37-22) = - 0.046 m

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