Question: 15. (10 pts) Consider the stress element representing the state of stress at a point in the material shown below. If the magnitudes of

15. (10 pts) Consider the stress element representing the state of stress at a point in the material shown below. If the magnitudes of stress are = 15 MPa, B = 25 MPa, and t = 20 MPa, draw Mohr's circle and calculate the magnitudes of the principal stresses. B A OA

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