Homework Help: physics

Posted by Anonymous on Friday, April 6, 2012 at 9:03am.

A steel rod of length 1 m is welded to the end of an aluminum rod of length 2 m (lengths measured at 23 °C). The combination rod is then heated to 198 °C. What is the length of the combination rod at 198 °C? (The linear expansion coefficients for steel and aluminum are 1.3 10-5 °C−1 and 2.2 10-5 °C−1, respectively. Enter your answer to three significant figures.)

physics - Anonymous, Friday, April 6, 2012 at 9:14am
got it
physics - Erica, Sunday, March 31, 2013 at 4:45pm
Could you elaborate on this?

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