Question 3 15 pts A metal block is subjected to pressure P = (200 + x) MPa in the x direction and P2 in the y direction. Young's modulus is 50 GPa and Poisson's ratio is 0.3. If the change of dimension in the y direction is 0, (1) Calculate the pressure P2 should be applied. (2) Calculate the corresponding change of length of in x and z direction. 9 Pz 25 mm 40 mm C 100 mm B P Please enter change of length in z dimension in the box below.