A small seat angle is used to support a beam with a reaction of $8000lbs.$ Two $\frac{3}{4}$ inch diameter bolts are used to resist the load. Compute the shear stress in each bolt.

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A steel eyebar, once commonly used as a tension member in small bridge trusses, has a rectangular cross$-$section of $4$ inch width by $\frac{3}{4}$ inch thickness and is $25$ feet long. The member is subjected to a tensile load of $57,000lbs.$ Compute $($a $)$ stress; $($b $)$ strain; $($c $)$ total elongation.