The cross$-$section shown in Fig. $5\mathrm{.}38$ has a vertical shear of

force $V.$ The wall thickness is $t.($a$)$ Compute the moment of inertia about the axis of symmetry; $($b$)$ make a cut and compute the shear flow distribution; $($c$)$ find the shear flow at the cut; and $($d$)$ find the shear center for this section.