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With what type of forces, potential ener...

With what type of forces, potential energy is associated?

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What is potential energy?

The total energy of an electron in the first excited state of the hydrogen atom is about -3.4 eV. (A) What is the kinetic energy of the electron in this state? (B) What is the potential energy of the electron in this state? (C) Which of the answers above would change if the choice of the zero of potential energy is changed?

Waterflows down the mountains to the plains. What happens to the potential energy of water ?

Discuss potential energy of a coiled spring.

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MBD-WORK, ENERGY AND POWER-EXAMPLE
  1. What is non-conservative force?

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  2. Can a body have momentum without energy?

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  3. With what type of forces, potential energy is associated?

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  4. What is coefficient of restitution? What is its value for perfectly el...

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  5. Give some examples of P.E. other than gravitatinoal P.E.

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  6. A person is trying to push a box, the whole day he makes use of his st...

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  7. An electron is moving towards a proton. Is the work done positive or n...

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  8. An arrow is shot from a bow, from where does it get kinetic energy?

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  9. Can a body have energy without momentum?

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  10. State the conditions under which a force does no work.

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  11. The kinetic energy of a body becomes 4 times its initial value. The ne...

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  12. What are the conditions so that transfer of kinetic energy is maximum ...

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  13. Why is electrical power required at all when the elevator is descendin...

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  14. A body is being raised to height h from the surface of earth. What is ...

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  15. A body is being raised to height h from the surface of earth. What is ...

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  16. Calculate the work done by a car against gravity in moving along a str...

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  17. Give an example of scalar product.

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  18. Name the physical quantity which is expressed as product of force and ...

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  19. What is te relation between joule and kg m?

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  20. Name the physical quantity which is expressed as product of force and ...

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