Strains are measured on the surface of a mild steel part as follows: $\backslash$epsi x $=250\backslash$times $106,\backslash$epsi y $=950\backslash$times $106,$ and $\backslash$gamma x y $=400\backslash$times $106.$ Estimate in$-$plane stresses $\backslash$sigma x $,\backslash$sigma y $,$ and $\backslash$tau x y $,$ and also the strain $\backslash$epsi z normal to the surface. $($The same assumptions apply as for Prob. $5\mathrm{.}14.)$