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What is the work done by earth's gravit...

What is the work done by earth's gravitational force in keeping the moon uniformly circulating around the earth ?

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The work done by a gravitational force acting on a free fall body will be positive , negative or zero ?

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When the earth revolves around the sun, the work done by the gravitational force of the sun is zero.

The moon is acted upon by the gravitational force of earth. Why does not moon fall on to earth?

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KUMAR PRAKASHAN-WORK, ENERGY AND POWER -SECTION - A Questions - Answers (Try Yourself (VSQs))
  1. Work done on the body by force or work done by the body ?

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  2. Define work

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  3. What is the work done by earth's gravitational force in keeping the m...

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  4. Is the work done by a frictional froce be positive or negative ?

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  5. How many erg equal to : Joule ?

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  6. How many Joule equal to 1 eV ?

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  7. How many Joule equal to 1 kWh ?

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  8. Define kinetic energy .Give its unit and dimensional formula and menti...

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  9. Define kinetic energy .Give its unit and dimensional formula and menti...

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  10. Is kinetic energy a scalar quantity or vector quantity ?

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  11. If the displacement is done by the force then when does the force is...

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  12. What is variable force ?

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  13. Obtain the equation of work by variable force in one dimension .

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  14. What will be the area under the graph of variable force versus positio...

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  15. Define kinetic energy

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  16. Define kinetic energy .Give its unit and dimensional formula and menti...

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  17. Is kinetic energy a scalar quantity or vector quantity ?

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  18. Show that the rate of change of kinetic energy is a power .

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  19. Whether the work energy theorem is a scalar or a vector ?

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  20. If the kinetic energy of body increases them ?

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