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Figure 13-15 shows a circular glass tube fastened to a vertical wall. The tube is filled with water except for an air bubble that is temporarily at rest at the bottom of the tube. Discuss the subsequent motion of the bubble in terms of energy transfers. Do so both neglecting viscous and frictional forces and taking them fully into account.

Figure 13-15 shows a circular glass tube fastened to a vertical wall. The tube is filled with water except for an air bubble that is temporarily at rest at the bottom of the tube. Discuss the subsequent motion of the bubble in terms of energy transfers. Do so both neglecting viscous and frictional forces and taking them fully into account.

Grade:upto college level

1 Answers

Deepak Patra
askIITians Faculty 471 Points
8 years ago
Initially assume that, there is no water in the tube. When the tube is filled with water, the kinetic energy of the water will transfer to the bubble and will cause the bubble to move in the absent of viscous and frictional force. If there is presence of viscous and frictional forces, then the bubble will come to rest in the tube after some time.

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