What‘s the last 4 numbers of your student ID and name? (Eg: 0234李XX)
The rainfall characteristics include ________, _________, _________.
The sketch shows a watershed in Changsha. Determine Tc. (From point A to point B).
Channel flow
n=0.05
A=25 ft^2
P=27 ft
s=0.004 ft/ft
L=7500 ft