Essential University Physics (3rd Edition)
3rd Edition
ISBN: 9780134202709
Author: Richard Wolfson
Publisher: PEARSON
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Chapter 12, Problem 66PP
You’ve been hired by your state’s environmental agency to monitor carbon dioxide levels just above rivers, with the goal of understanding whether river water acts as a source or sink of CO2. You’ve constructed the apparatus shown in Fig. 12.38, consisting of a boom mounted on a pivot, a vertical support, and a rope with pulley for raising and lowering the boom so its end can extend different distances over the river. In addition, there's a separate rope and pulley for dropping the sampling apparatus so it’s just above the river.
FIGURE 12.38 Passage Problem 64–67
If you secure the boom at a fixed angle and lower the sampling apparatus at constant speed, the boom rope tension will
- a. increase.
- b. decrease.
- c. remain the same.
- d. increase only if the sampling apparatus is more massive than the boom.
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Chapter 12 Solutions
Essential University Physics (3rd Edition)
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