If you could present a step by step process that would be great for my studies. A block of material is machined as a cube with edge length equal to 10 cm at room temperature. After heating by 100 C, the block remains a cube, but with an edge length equal to 10.006 cm. After cooling back to room temperature, you put the block in a vice so that two of the dimensions cannot exceed 10.001 cm. After heating by 100 C, the unconstrained dimension of the block is 10.010. Calculate Poisson's ratio of the block, assuming that the material is elastically and thermally isotropic. Express your answer in the form y.yyy