IlW Hydraulic engineers in the United States often use, as
Chapter 1, Problem 7(choose chapter or problem)
Hydraulic engineers in the United States often use, as a unit of volume of water, the acre-foot, defined as the volume of water that will cover 1 acre of land to a depth of 1 ft. A severe thunderstorm dumped 2.0 in. of rain in 30 min on a town of area \(26 \ \mathrm{km}^{2}\). What volume of water, in acre-feet, fell on the town?
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