A material is subjected to stress as shown in the figure below. Use the Mohr's circle to determine: A. The principal stresses and their corresponding principal planes, B. The maximum shear stress and the planes of maximum shear stress, also C. Show the principal stresses calculated above on a sketch of the element. D. Determine the state of stresses if the element is rotated by 15' in counter-clockwise direction. 75 MPa 751la 125 MPa 50 MPa Rough wa 5