Given the loading diagram below (left) with a cross section of the beam at the right: a) Is this beam determinate or indeterminate? If the latter, to what degree? b) Draw shear and bending moment diagrams for this beam and loading. Use the verticallines below to help you. c) Determine the induced normal stresses at the top and bottom of the built-up beam. d) Compute the maximum allowable spacing of the nails to hold the beam together.