Homework Help: physics

Posted by cynthia on Tuesday, April 21, 2009 at 1:01pm.

a bimetallic compound strip of brass and iron is 10cm long at 20C. When heated over a Bunsen burner flame the temperature of the brass rises to 800C and the iron to 750C. Calculate the difference in lengths of the iron and brass. (Ignore the bending effect)...please help

physics - bobpursley, Tuesday, April 21, 2009 at 2:01pm
All you have to do is look up the coefficents of linear expansion,subtract one from the other, then

deltaL=L(differenceincoefficents)
- physics - bobpursley, Tuesday, April 21, 2009 at 2:02pm
  oops, multiply that by delta Temp.
physics - cynthia, Tuesday, April 21, 2009 at 2:09pm
i don't exactly understand what you are saying
physics - cynthia, Tuesday, April 21, 2009 at 2:12pm
i don't exactly understand what you are saying
physics - Amanda Touf, Tuesday, April 21, 2009 at 9:27pm
Cynthia from Assumption! HEY! (if it's not you ignore this...)Oh that one is linear expansion we didn't do that lol :P

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