Question

4) By how much does a 1 m bar of steel expand when heated from T0=20 C to T=35 C. (Steel’s Linear thermal expansion coefficient K=12.6 * 10^(-6)) ---> not sure if that's what it says...solve in terms of x as well to make sure we know how to do it in case it's the wrong number

Answer 1

\[\Delta L = L_i \Delta T ~K\]