The Total Flow of the Niagara River Is $$6.0 \times 10 ^ { 3 } \mathrm {~m} ^ { 3 } / \mathrm { s } \text {. Using the height of }$$

The total flow of the Niagara River is $$6.0 \times 10 ^ { 3 } \mathrm {~m} ^ { 3 } / \mathrm { s } \text {. Using the height of }$$ Niagara Falls as given in the text and the fact that a maximum of 75% of the flow can be utilized for hydroelectric power outside tourist season, calculate the maximum available electric power if the generators are 85% efficient.