A couple M of magnitude 1500 N ? m is applied to the crank of an engine. For the position shown, determine (a) the force P required to hold the engine system in equilibrium, (b) the average normal stress in the connecting rod BC, which has a 450-mm2 uniform cross section.

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...