Given data:
*The cubic expansivity of brass is
[tex]\Delta=5.7\times10^{-5}K^{-1}[/tex]The expression for the linear expansivity is given as
[tex]\alpha=\frac{\Delta}{3}[/tex]Substitute the known values in the above expression as
[tex]\begin{gathered} \alpha=\frac{5.7\times10^{-5}}{3} \\ =1.90\times10^{-5}K^{-1} \end{gathered}[/tex]
