The cylindrical tank is made from A-36 steel with a yield strength are 250 MPa, modulus of elasticity &-200 GPa and Poisson's ratio v 0.3. When the tank is pressure p, a 60 strain rosette mounted on the surface measures the following strains: & 100(10), 343(10), maximum-distortion-energy theory, to determine the factor of safety against yielding (c) Find the internal pressure p acting within the tank.