1.A paved parking lot section has a uniform slope over a length of 100 m (in the flow direction) from the point of a drainage area divide to the inlet grate, which extends across the lot width of 30 m. Rainfall is occurring at a uniform intensity of 10 cm/hr. If the detention storage on the paved section is increasing at the rate of 60 m3/hr, what is the runoff rate into the inlet grate?
2.What mass of lead nitrate [Pb(NO3)2] must be dissolved in 1 L of water to produce a solution that contains 20 mg of lead ions? Assume 100% ionization.
3.Given a V-shaped channel with a bottom slope of 0.001, a top width of 12ft, and a depth of 6 ft, determine the velocity of flow. Find the discharge in cfs and m^3/s.