Need help understanding/solving this problem.
The 1-hr unit hydrograph of excess precipitation is shown in the table below.
Time (hr) 0 1 2 3 4 5
Discharge Q (cfs/in) 0 35 75 105 40 0
A 2-hr storm produces 1.7 in. of runoff during the first hour followed by 0.8 in. of...