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the ordinates of a 6-h unit hydrograph for a particular catchment are 0,10,30,50,40,30,20,10 and 0 m3/s...

the ordinates of a 6-h unit hydrograph for a particular catchment are 0,10,30,50,40,30,20,10 and 0 m3/s (values at 3 hourly intervals). the effective rainfall depth of a particular storm was 28 mm. assume a constant base flow of 3 m3/s. what is the streamflow at the end of the third time interval?

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