This question is a short free-response question. Show your work for each part of the question 5 m 3 m 2 m/s D 4 m (10 points, suggested time 20 minutes) One section of a 5 m wide irrigation channel that is filled with water contains an incline, as shown. At the top of the incline, the channel is 3 m deep and the water has a speed of 2 m/s. At the bottom of the incline, the channel has a depth D and the water has a speed of us. (a) In a coherent, paragraph-length response, explain how the changes in the channel affect the pressure of the water in terms of the energy changes of the water MacBook Air DOO 80 < 2 of 2 (b) The lower part of the channel later gets narrower, as shown in the figure. The shaded area is a slice of water in the section of the channel that is getting narrower.
