You point a $2\mathrm{.}86$ in diameter hose you$$re using straight up to use as a water fountain to drink from. The water flows out the hose and down the sides. If the water has a density of $62\mathrm{.}8$ lbm$/$ft$^3$ and a viscosity of $0\mathrm{.}0099$ g$/$cm$*$s$,$ what is the thickness of the water film $($df$)($in cm$)$ if the flow rate of water is $7\mathrm{.}45$ in$^3/$s$?$ For simplicity, assume the film is thin enough that you can use rectangular coordinates.