$(20$ points$)$ Problem $(1)$ Find the moment $M$ for the cross$-$section shown below that

corresponds to the tension steel reaching its allowable stress level of $20$ ksi $.$ Assume a

modular ratio of $E\frac{s}{E}C=10.$ Assume a $2$ in cover for rebar.

$(20$ points$)$ Problem $(2)$ Determine the ACl design moment capacity $Mn$ for the beam

below if $f^{\text{'}}c=5000$ psi and $fy=60,000$ psi.