Soil Mechanics For the state of stress shown below, draw the Mohr's circle to scale and graphically determine: a. The magnitudes of the principal stresses b. The orientation of the element on which...

For the state of stress shown below, draw the Mohr's circle to scale and graphically determine: a. The magnitudes of the principal stresses b. The orientation of the element on which the principal stresses act with regard to the horizontal plane. (You may use equations to check/confirm your work)