Consider a stream connecting a lake to the ocean with a length of 4.8 km and a cross-sectional area of 20 m^2. Every year, birds mass along the stream and consume 10,000 fingerlings per kilometer of steam each hour regardless of the population of fingerlings in the stream. The fingerlings move downstream with the stream’s flow rate of 700 m^3/min. If there are 7 fingerlings per m^3 in the water entering the steam, what is the concentration of fingerlings that reach the ocean? Hint: The birds consume fingerlings at a constant rate, which implies that the consumption is zero-order.

Question

Consider a stream connecting a lake to the ocean with a length of 4.8 km and a cross-sectional area of 20 m^2. Every year, birds mass along the stream and consume 10,000 fingerlings per kilometer of steam each hour regardless of the population of fingerlings in the stream. The fingerlings move downstream with the stream’s flow rate of 700 m^3/min. If there are 7 fingerlings per m^3 in the water entering the steam, what is the concentration of fingerlings that reach the ocean? Hint: The birds consume fingerlings at a constant rate, which implies that the consumption is zero-order.

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