A plastic cube with a 4in. x 4in. x 4in. dimension is placed in a pressure chamber and subjected to a pressure of 15000 psi. If the modulus of elasticity is 1000 ksi and Poisson's ratio s 0.49, what will be the decrease in each side of the block, assuming the material reamins within the linear elastic region? What will be the decrease in the volume of the cube?
