A. Compute the magnitude of the stresses due to bending, transverse shear and torsion. For the normal stresses, state if they are tensile or compressive.
B. Draw in 3D (as in class) ALL the stresses in an infinitesimal element and label them correctly (x, y,xy, etc.).
C. Draw cubes from the xy plane and draw how this infinitesimal element deforms due to each of the stresses. Making a legible drawing of the combined deformation is not easy, so just try to visualize the combined deformation in your head by adding all the cubes.

An external consultant recommends that a plant installs a bank of capacitors for power factor correction. this will reduce the peak electrical demand charges by an average of 93 kw every month. the plant current pays $13 per kw in peak demand charges. the capacitor bank will include 223 kw of fixed capacitors, and 183 of variable capacitors. the fixed capacitors cost $59 per kw, and the variable capacitors will cost $65 per kw. the consultant charges 21% of the equipment costs to install the capacitors. because this project will reduce the demand for the electric utility, they are prepared to provide a one-time rebate of $42 per kw of reduced demand. what is the simple payback period for this project (in years)?