The inflow hydrograph to a rectangular channel is given below. The channel has a width of $50ft,$ a bottom slope of $0\mathrm{.}0025,$ and a concrete lining with trowel finish $($normal condition$).$ The length of the channel is $32,000ft.$ Using the kinematic wave method, calculate and plot the outflow hydrograph on the same graph as the inflow hydrograph.

$\backslash$table$[[$Time $($hr$),$Inflow $($cfs$)],[0,400],[1,800],[2,1,600],[3,2,500],[4,3,300],[5,2,800],[6,2,300],[7,1,800],[8,1,300],[9,800],[10,300]]$