For the thin-walled beam section with uniform thickness (t) shown in figure, find the centroid, and all moments of inertia about centroidal axes for the section. Sketch the shear stress distribution due to a vertical shear force (V) acting downward at the shear center. Show the relative values of the shear flow, type of distribution (i.e., uniform, linear, or parabolic), zero points and maximum point. Find the location of the shear center of the section in terms of the parameters (a, I: moment of inertia of the section about the horizontal axis). What is the maximum shear stress due to a shear force in the vertical direction passing by the shear center? a 45 a 2a a