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2 thermoexpansion questions

  • Thread starter ice87
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  • #1
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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!
 
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Answers and Replies

  • #2
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*bump* no one?
 
  • #3
Integral
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Could you post what you used for the various constants?

Thermal expanson of Al =?
youngs modulus of steel =?
 
  • #4
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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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