$ln($Figure $1),{}_y=12\mathrm{.}2$ksi.

Figure

Part A

Determine the principal stresses. Specify the orientation of the element.

Express your answers, separated by commas, to three significant figures.

${}_1=,{}_2=,{}_{p1}=$ ksi, ksi, $($clockwise$)$

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Part B

Determine the maximum in$-$plane shear stress and average normal stress. Specify the orientation of the element.

Express your answers, separated by commas, to three significant figures.

$1$ of $1$

$$

${}_{in-\text{p}\text{l}\text{a}\text{n}\text{e}}^{\text{m}\text{a}\text{x}}=,{}_{\text{a}\text{v}\text{g}}=,{}_s=$

$$ ksi, ksi, $($clockwise$)$

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