Question: 3 The stress element is rotated until the principal normal stresses (1,2) are obtained. Select all that are true when the element is in this

3 The stress element is rotated until the principal normal stresses (1,2) are obtained. Select all that are true when the element is in this plane. Ta'y' = Max & Min oy' = Max or Min Jy' = = zero Tx', y' 2 pts = zero

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