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Homework Help: 2 thermoexpansion questions

  1. Sep 20, 2005 #1
    These are really parts of questions.
    http://noether.physics.ubc.ca/physics153/assign22k5.pdf

    for number 2, i'm getting 264000kPa, but somehow it just doesnt seem rite, so if you guys can check for me, that'll be great. the other one i dont get is the second part of questions 4 where it asks for a time difference. can anyone help me out here? thanks!
     
    Last edited by a moderator: Apr 21, 2017
  2. jcsd
  3. Sep 21, 2005 #2
    *bump* no one?
     
  4. Sep 21, 2005 #3

    Integral

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    Could you post what you used for the various constants?

    Thermal expanson of Al =?
    youngs modulus of steel =?
     
  5. Sep 21, 2005 #4
    thermal expansion of: Al = 2.4*10^-5, steel: 1.2*10^-5, brass: 2.0*10^-5
    young's modulus of steel = 20*10^10 (NOT 2.0*10^10)
     
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