A Long Straight River, 4 Meters Wide, Is Flowing at 1

Short Answer

A long straight river, 4 meters wide, is flowing at 1 meter per second. A pollutant is entering the river at a constant rate from one of its banks. As the pollutant disperses in the water, it forms a plume that is modeled by the equation . How wide is the plume 4 meters down river from the source of the pollution? __________ meters