Economics homework help. A square steel plate is 13.0cm on a side and 0.500 cm thick. Assume that the plate is oriented with the square faces horizontal to the ground. Find the shear strain that results if a force of magnitude 10.00×10 ^5is applied to the top square face of the plate, parallel to the side, and a force of equal magnitude is applied in the opposite direction to the bottom face of the plate as shown .