Do problem $9\mathrm{.}16$ in the text on page $376.$ You may assume that the base time $($T$)$ is equal to $4**P_R.$ Your solution is to include the data points for the unit hydrograph and a computergenerated plot showing the unit hydrograph. Then calculate the area under the unit hydrograph and compare this to the basin area given in the problem statement. The plot must be computer generated and the data points clearly shown to get full credit.

You should note that the area under the unit hydrograph for the conditions above is different than the provided basin area. Using the given basin area, calculate the time when the UH reaches a flow of $0cf\frac{s}{i}n$ on the tailing end of the hydrograph so the area under the UH is equal to the basin area. Note that the assumption that $T=4**P_R$ will change for this part of the problem $($you are basically calculating T so the area works$).$ Then develop a computer$-$generated plot with the new final point on the UH

PLEASE SOLVE WITH EXCEL.