Water is flowing at a depth of 10.0 ft with a velocity of 10.0 ft/s in a channel of rectangular section. a)If there is a smooth contraction in the channel width from 10.0 ft to 9.0 ft, calculate the flow depth in feet in the contracted section using a solver. b)If there is a smooth contraction in width from original upstream width of 10.0 feet, find the minimum width (in feet) in the contraction so that choking is prevented.

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