Transcription of Chapter 9 – Fluids
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Chapter 9 – Fluids
Flowing Fluids , such as the water flowing in the photograph at Coors Falls in Colorado, can make interesting patterns. In this Chapter , we will investigate the basic physics behind such flow. Photo credit: Digital is interesting to think about how much physics is involved in the situation shown in the photograph. First of all, there is the influence of gravity, which makes the water flow down. Second, you can see the parabolic trajectories followed by the water as it is in free-fall at a number of different locations in the photograph. Third, there is the somewhat ghostly appearance of the water. This is caused by the photographer keeping the camera shutter open for an extended period as the picture was taken, with the motion of the water during this period causing a 9 FluidsCHAPTER CONTENTS 9-1 The Buoyant Force 9-2 Using Force Methods with Fluids 9-3 Archimedes Principle 9-4 Solving Buoyancy Problems 9-5 An Example Buoyancy Problem 9-6 Pressure 9-7 Atmos
Chapter 9 – Fluids Page 9 - 3 Figure 9.4: Free-body diagrams for the blocks floating in equilibrium in the beaker of water. F B represents the buoyant force, an upward force applied on each block by the fluid. Figure 9.5: In this case, the blocks are not at equilibrium. The block on the left has been
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