A T$-$shape beam has the cross section shown below,

$(1)$ If an internal bending moment of $20$ kips $ft$ is applied, determine the maximum bending stress in the beam. $($Answer rounded to $0\mathrm{.}01$ksi $)$

$(2)$ If an internal shear force of $8$kips is applied, determine the maximum shear stress. $($Answer rounded to $0\mathrm{.}01$ksi $)$