An $\frac{81}{2}$ in$.$ thick one$-$way slab interior spans $10$ ft $.$ It was designed with the reinforcement of #$6$ size bars at $6\mathrm{.}5$ in $.$ on center, to be placed with a cover of $0\mathrm{.}75$ in $.$ However, the same steel was misplaced at a clear distance of $2$ in $.$ from the bottom. How much is the reduction in the capacity of the slab reduced to carry the superimposed service live load in addition to its own weight? $f{c}^{\text{'}}=4,000$ psi; $fy=60,000$ psi.

Determine the concrete shear capacity, web reinforcement shear capacity, and design shear force permitted on the beam sections shown in the figure below. Check for the spacing of web reinforcement. Use $f{c}^{\text{'}}=3,000$ psi and $f=40,000$ psi.