Air is flowing through a venturi meter whose diameter is $2\mathrm{.}6$ in at the entrance part $($location $1)$ and $1\mathrm{.}8$ in at the throat $($location $2).$ The gage pressure is measured to be $12\mathrm{.}40$ psia at the entrance and $11\mathrm{.}8$ psia at the throat.The density of air is given to be $\backslash$rho $=0\mathrm{.}075$ lbm$/$ft$3$

$.$ Determine the flow rate of air. $($Round the final answer to two decimal places.$)$