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1. Draw the specific discharge curves for a rectangular channel of bed width= 10.0 m, and n = 0.025 considering specific energy values of: 0, 2, 4, and 5 m. Determine analytically and check graphically whenever possible: i. ii. iii. The critical depth and critical slope; The maximum unit discharge; and The water depth (or depths) which will allow a flow of 15 m³/s to pass in the channel. What is (are) the bed slope(s) in this case?