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College Physics with MasteringPhysics 7th Edition by Jerry Wilson,Anthony Buffa,Bo Lou
Edition 7ISBN: 978-0321601834College Physics with MasteringPhysics 7th Edition by Jerry Wilson,Anthony Buffa,Bo Lou
Edition 7ISBN: 978-0321601834 Exercise 97
As a follow-up to Conceptual Question, consider a child holding a helium balloon in a closed car at rest. What would the child observe when the car (a) accelerates from rest and (b) brakes to a stop (The balloon does not touch the roof of the car.)
Conceptional Question
Consider an air-bubble level that is sitting on a horizontal surface (Fig.). Initially, the air bubble is in the middle of the horizontal glass tube. (a) If the level is pushed and a force is applied to accelerate it, which way would the bubble move Which way would the bubble move if the force is then removed and the level slows down, due to friction (b) Such a level is sometimes used as an "accelerometer" to indicate the direction of the acceleration. Explain the principle involved. [ Hint : Think about pushing a pan of water.]
![As a follow-up to Conceptual Question, consider a child holding a helium balloon in a closed car at rest. What would the child observe when the car (a) accelerates from rest and (b) brakes to a stop (The balloon does not touch the roof of the car.) Conceptional Question Consider an air-bubble level that is sitting on a horizontal surface (Fig.). Initially, the air bubble is in the middle of the horizontal glass tube. (a) If the level is pushed and a force is applied to accelerate it, which way would the bubble move Which way would the bubble move if the force is then removed and the level slows down, due to friction (b) Such a level is sometimes used as an accelerometer to indicate the direction of the acceleration. Explain the principle involved. [ Hint : Think about pushing a pan of water.] FIGURE An air-bubble level/accelerometer See Conceptual Question.](https://d2lvgg3v3hfg70.cloudfront.net/SM7467/11eb75c5_c53f_7785_adfc_779007f6f598_SM7467_00.jpg)
FIGURE An air-bubble level/accelerometer See Conceptual Question.
Conceptional Question
Consider an air-bubble level that is sitting on a horizontal surface (Fig.). Initially, the air bubble is in the middle of the horizontal glass tube. (a) If the level is pushed and a force is applied to accelerate it, which way would the bubble move Which way would the bubble move if the force is then removed and the level slows down, due to friction (b) Such a level is sometimes used as an "accelerometer" to indicate the direction of the acceleration. Explain the principle involved. [ Hint : Think about pushing a pan of water.]
FIGURE An air-bubble level/accelerometer See Conceptual Question.
Explanation
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Verified
(a)
There are both air and helium ballo...
College Physics with MasteringPhysics 7th Edition by Jerry Wilson,Anthony Buffa,Bo Lou
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