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A spring of spring constant k is cut in ...

A spring of spring constant k is cut in three equal pieces. The spring constant of each part will be

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It will become twice .
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MODERN PUBLICATION-WORK, ENERGY AND POWER -Revision Exercise (Very Short Answer Questions)
  1. Is the mechanical energy always conserved ?

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  2. What will happen to the potential energy of an air bubble in water ...

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  3. A spring of spring constant k is cut in three equal pieces. The spring...

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  4. When is KE of a planet revolving around the sun maximum?

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  5. If K.E of a body is made three times , how will the momentum change...

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  6. If the momentum of a body is made three times , how will the kineti...

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  7. A bullet gets embedded in a wooden block. Where does its KE go?

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  8. One horse power is equal to

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  9. What is the power ? Write its dimensional formula .

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  10. How can you say that friction is a non - conservative force ?

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  11. The work done by the centripetal force in quarter revolution would be,

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  12. Can we change K.E of a system without changing its momentum ?

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  13. What will happen to potential energy of a spring when it is compresse...

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  14. What wil happen to potential energy of a spring when it is streched ...

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  15. What changes in uniform circular motion , momentm or K.E ?

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  16. What is an elastic collision ?

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  17. Inelastic collision is the-

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  18. Which physical quantity is conserved in both, elastic and inelastic co...

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  19. In which collision , the two bodies stick together after collision ?

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  20. COEFFICIENT OF RESTITUTION

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