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How many joules make up one erg?...

How many joules make up one erg?

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`10^(7)` erg = 1 Joule
1 erg = `10^(-7)` Joule
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PREMIERS PUBLISHERS-WORK, ENERGY AND POWER -VERY SHORT ANSWER QUESTIONS
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  3. Define watt.

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  4. When a work is said to be done? Give some example.

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  5. State the condition under which a force does not work.

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  9. Define energy and write its unit and dimension.

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  11. What is meant by the term potential energy ? Give its two examples.

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  12. What is meant by kinetic energy?

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  13. How many joules make up one erg?

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  14. Which physical quantities is / are conserved during elastic and inelas...

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  16. Can a body have momentum without energy?

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  18. Can you associate potential energy with non-conservative force?

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  19. A rocket explodes in mid air. How does this affect its total momentum?

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  20. Define watt.

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