Chapter 9, Problem 11CQ

### College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300

Chapter
Section

### College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300
Textbook Problem

# Water flows along a streamline through the pipe shown in Figure CQ9.11. Point A is higher than points B and C, and the pipe has a constant radius until it expands between B and C. From highest to lowest, (a) rank the flow speeds at points A, B, and C and (b) rank the pressures at points A, B, and C.Figure CQ9.11

(a)

To determine
The flow speeds at points A, B and C.

Explanation

From equation of continuity,

AAvA=ABvB

ABvB=ACvC

The cross sectional areas corresponding to points A and B are the same. Therefore,

AvA=AvBvA=vB

The cross sectional area corresponding to C is greater than that of B

(b)

To determine
The pressure at points A, B and C.

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