A rectangular RC beam section made of normal$-$weight concrete is b $=10$ in$.$ wide and has an

effective depth of d $=13\mathrm{.}5$ in$.$ Longitudinal steel reinforcement consists of two No$.8$ bars,

while no shear reinforcement is designed for this beam. Assume the $28-$days concrete

strength is f$$c $=4,000$ psi

a$.$ Determine the design shear capacity of this beam according to ACI $318.$

b$.$ Check the concrete compressive strength limit for this beam, per ACI $318,$ Article $22\mathrm{.}5\mathrm{.}3\mathrm{.}2.$