Find out the mass of water fell on the town
A severe thunderstorm dumped 2.5 in of rain in 30 min on a town of area 34 km^2. What mass of water (in kg) fell on the town? One cubic meter of water has a mass of 10^3 kg.
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Sketch and name the particular type of backwater curve occurring in this case. Estimate the distance along the channel over which the fluid depth changes from 0.4m to 0.2
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