Solved: Youve been hired by your states environmental agency to monitor carbon dioxide
Chapter 12, Problem 67(choose chapter or problem)
Youve been hired by your states 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. Youve 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, theres a separate rope and pulley for dropping the sampling apparatus so its just above the river. Boom rope Sampling rope Pulley Sampling apparatus Boom Pulley Pivot Figure 12.38 Passage 6467 If you pull the boom rope with constant speed, the angle the boom makes with the horizontal will a. increase at a constant rate. b. increase at an increasing rate. c. increase at a decreasing rate. d. decrease.
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