For a UU test, at what angle of orientation (measured counter-clockwise from horizontal) on the soil specimen is the maximum undrained shear strength achieved during failure? Show / explain this with the use of Mohr's circle. (10 pts.) (b) The maximum undrained shear stress at failure for a given soil (taken from a given soil depth) during a UU test is 33 psi. What is the total major principal stress at failure for the corresponding UC test on the same soil (taken from the same soil depth)? Assume the samples were well prepared, meaning that they are fully saturated (no air voids). (10 pts