Ideal incompressible water is flowing in a drainage channel of rectangular cross-section.At one point,the width of the channel is 12 m,the depth of water is 6.0 m,and the speed of the flow is 2.5 m/s.At a point downstream,the width has narrowed to 9.0 m,and the depth of water is 8.0 m.What is the speed of the flow at the second point?
A)2.0 m/s
B)2.5 m/s
C)3.0 m/s
D)3.5 m/s
E)4.0 m/s

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The Answer of Ideal incompressible water is flowing in a drainage channel of rectangular cross-section.At one point,the width of the channel is 12 m,the depth of water is 6.0 m,and the speed of the flow is 2.5 m/s.At a point downstream,the width has narrowed to 9.0 m,and the depth of water is 8.0 m.What is the speed of the flow at the second point?
A)2.0 m/s
B)2.5 m/s
C)3.0 m/s
D)3.5 m/s
E)4.0 m/s

Ideal Incompressible Water Is Flowing in a Drainage Channel of Rectangular