Task N8 (Max points: 10) Given a hollow ball made of an isotropic elastic material, the inner and outer surfaces of which are concentric spheres of radius a and b, respectively. Pressure pa acts in the cavity of the sphere, and pressure pt = 0 is applied to the outer surface of the sphere. Find the stress state of the ball if a < < b. Enter your answer: Attach a file (jpg, png, doc, docx, pdf) Choose File No file chosen