- #1

hils0005

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## Homework Equations

[tex]\Delta[/tex]L=L[tex]\alpha[/tex][tex]\Delta[/tex]T

L(i)rod=20.05cm

L(f)rod=20.11

L(i)steel=20.05 ??

[tex]\Delta[/tex]T=250C

[tex]\alpha[/tex]steel=11 x 10^-6

## The Attempt at a Solution

Ls=20.05cm(11x10^-6)(250C)

L=.055cm

I don't know what to do now-