Problem 2 (20 points) and to decrease in width by 8, = 0.21 x 10-³ in. Given: A steel rectangular block of width a = 1 in, and depth b=0.5 in, and length L-4 in is subjected to axial tensile load P = 10.5 kips. Measurements show the block to increase in length by 6,-28 x 10 in Assumption: The material behaves elastically. Find: a) The modulus of elasticity, E= , and Poisson's ratio for the material, v=- b) The change in volume of the block, AV = e V₁, where e = (1-2)