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![6.24 Water flows at a depth of 2 m in a 3 m wide rectangular channel. At a downstream<br>section the width is 2.3 m, the channel bed is raised 300 mm, and the water surface drops by<br>125 mm.<br>(a) What is the flow rate?<br>[Ans. 7.116 m³/s.]<br>(b) What should be the bed elevation at the contracted section if the water surface is<br>to remain level?<br>[Ans. - 0.609 m.]<br>da nt ha inlet hae a horizontal bed. If<br>](https://s3.us-east-1.amazonaws.com/storage.unifolks.com/qimg-008/008_hcedzp0-aji1h2nz.jpeg)
Extracted text: 6.24 Water flows at a depth of 2 m in a 3 m wide rectangular channel. At a downstream section the width is 2.3 m, the channel bed is raised 300 mm, and the water surface drops by 125 mm. (a) What is the flow rate? [Ans. 7.116 m³/s.] (b) What should be the bed elevation at the contracted section if the water surface is to remain level? [Ans. - 0.609 m.] da nt ha inlet hae a horizontal bed. If