1. PF Contest - Win "Conquering the Physics GRE" book! Click Here to Enter
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Thermal Expansion (again)

  1. Jan 27, 2009 #1
    1. The problem statement, all variables and given/known data
    A hole in an aluminum plate has a diameter of 1.179 cm at 22.00 degrees Celsius.
    Part A asks for the diameter of the hole at 199 degrees Celsius.?
    Part B asks for the temperature of the hole when its diameter is 1.177 cm?

    2. Relevant equations

    ∆L = alpha L(0) ∆T

    3. The attempt at a solution
    I got the answer for Part A.

    Here's what I did so far for Part B:
    I manipulated the equation as follows:
    ∆L/alpha*L(0) + Temp (initial) = Temp (final)

    And I used the difference between 1.177 and 1.179 cm for ∆L, used 1.179 for L(0) and the 22 degrees C for the initial temperature. Is this method correct?
  2. jcsd
  3. Jan 27, 2009 #2
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Threads - Thermal Expansion again Date
Thermal expansion of a ring Feb 27, 2018
Thermal expansion of bimetallic strip Dec 24, 2017
Thermal expansion May 18, 2017
Find the change in height of a bridge Apr 29, 2017
Thermal energy problem: Gas expansion in cylinder Mar 11, 2017