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Homework Help: Thermal Expansion, Change in Temperature

  1. Nov 12, 2011 #1
    1. The problem statement, all variables and given/known data

    ""If the coefficient of thermal expansion of steel is 1.1 x 10^ -5 ℃^ -1 and a railway rail is 4. 5 m long, how much would the length Δ L of the rail increase by if the temperature changes from -10 ℃ to 30 ℃? ""

    Could anyone direct me to a youtube video, or something that could help understand how to work this out and get the answer.

    2. Relevant equations

    Im not sure

    3. The attempt at a solution
    Not sure. Please and thank you for your help.
  2. jcsd
  3. Nov 12, 2011 #2

    Doc Al

    User Avatar

    Staff: Mentor

    See: http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/thexp.html" [Broken]
    Last edited by a moderator: May 5, 2017
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