2. For a rectangular solid shape specimen to mimic the long bone loading condition within the linear elastic stage, we know the length L = 40 cm, the width w = 2 cm, the thickness t = 2 cm, the Young's modulus E=25 GPa, and the Poisson's ratio v = 0.3. Please compute the following quantities in terms of different loading scenarios: (a) If we apply the uniaxial tensile load F1 = 30 kN perpendicularly on the left and right end cross-sections of the specimen, as shown in Figure (1), please compute the engineering tensile stress on the specimen. (b) Based on the results in (a), please compute the engineering tensile strain, and the length of the specihen under the above load F = 30 kN. er L (1) F2 It F2 F1 (c) If we apply the shear load F2 = 20 kN along the positive and negative thickness t direction on the left and right end cross-sections, as shown in Figure (2), please compute the shear stress on the specimen. (d) Assume the specimen material is homogeneous, isotropic, and linear elastic, please compute the shear strain on the specimen.