Consider this cross section for a cantilever beam.

a$.$ Determine its moment capacity $(M_n)$

b$.$ Determine the uniform dead load $($including beam weight$)$ that can be applied to the cantilever.

$f_c^{\text{'}}=4,000,E_c=3,600,000,w_c=150\frac{lb}{f{t}^3}$

$f_y=60,000,E_s=29,000,000$