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Name the process in which momentum chang...

Name the process in which momentum changes but KE does not.

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In uniform circular motion, momentum changes but KE does no change.
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PRADEEP-WORK, ENERGY AND POWER-Very Short Anwer Question.
  1. Show graphically the variation of potential energy of an object thrown...

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  2. What is spring constant ? What are its SI units?

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  3. Name the process in which momentum changes but KE does not.

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  4. What is the source of KE of falling rain drops ?

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  5. What is work done in holding a 15kg suitcase while waiting for a bus f...

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  6. Is it practically possible to have situtations where (E-V)lt0?

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  7. Can K.E. of a system be increased or decreased without applying any e...

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  8. Does the sun do any work on earth, when earth revoves around the sun i...

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  9. Does K.E. depend upon the direction of motion involved ? Can it be ne...

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  10. Name the largest and smallest practical unit of energy.

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  11. Is work done by a non conservative force always negative ? Comment.

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  12. Does potential energy of a spring decrease // increase when it is comp...

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  13. When an air bubble rises in water, what happens to its potential energ...

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  14. Name the process in which momentum changes but KE does not.

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  15. A shot fired from a cannon explodes in air. What will be the changes i...

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  16. The momentum of an object is doubled. How does its K.E. change?

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  17. Can P.E. of an object be negative?

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  18. Does the work done in moving a body depend on how fast or how slow the...

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  19. A spring is cut into two equal halves. How is the spring constant of e...

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  20. Is it possible exert a force which does work on a body without changin...

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