A beam is subjected to equal bending moments M = 6.5 kip-ft, as
shown. The cross-section of the beam is also shown. The top
rectangular area (1) has cross-section dimensions b1 x d1, as
shown, where b1 = 6.5 in. and d1 =1.50 in. The left and right
rectangular legs (2) and (3) are of dimensions b2 x d2 as shown,
where b2=0.75 in. and d2=6.0 in. Determine: (a) the centroid
location, the moment of inertia about the z axis,...