(Solved): The A-36 steel pipe shown in (Figure 1) has an outer and inner diameter of 30mm and 20mm, respe ...

The A-36 steel pipe shown in (Figure 1) has an outer and inner diameter of $30\mathrm{mm}$ and $20\mathrm{mm}$, respectively. Suppose that $P=900\mathrm{N}$ and $L=180\mathrm{mm}$. Determine the factor of safety against yielding of the material at point $A$ according to the maximum-distortion-energy theory. Express your answer using three significant figures. Figure 1 of 1