A 40-kN axial load is applied to a short wooden post that is supported by a concrete footing resting on undisturbed soil. Determine (a) the maximum bearing stress on the concrete footing, (b) the size of the footing for which the average bearing stress in the soil is 145 kPa.

AFTER MIDTERM 2 3RD last week 3D plotting Create matrices for X and Y like this: ā [X,Y] = meshgrid(Ā10:.5:10); The variables are then available to use in equations: R = sqrt(X.^2+Y.^2); Z = sin(R)./R; The ānā in the syntax for contour are for how many lines...