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Write the expression of gravitational po...

 Write the expression of gravitational potential energy and gravitational potential at the surface of earth .

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The correct Answer is:
`(U=-(GM_em)/R_E,V=-(GM_E)/R_E)`
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KUMAR PRAKASHAN-GRAVITATION-Section - A Try Yourself (VSQs)
  1. Define gravitational potential. Give its unit. Is gravitational potent...

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  2. Define gravitational potential energy. Obtain the formula for the grav...

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  3. Write the expression of gravitational potential energy and gravitation...

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  4. Give the difference between gravitational potential energy and gravita...

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  5. Explain escape energy and give its definition.

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  6. What is the total energy at infinite distance ? (zero or positive)

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  7. A stationary body on a surface of earth have negative energy - What it...

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  8. How much force of gravitation acted on a body at infinite distance fro...

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  9. Explain escape energy of body lying on the  earth

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  10. Give the binding energy of body lying on the earth at distance r from ...

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  11. Give the unit and dimensional formula of escape energy.

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  12. Define escape velocity

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  13. What is the value of escape velocity of a body lying on the surface of...

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  14. What is the value of escape velocity of a body lying on the surface of...

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  15. On what factors escape velocity does not depend?

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  16. What is satellite ? Gives its types and uses.

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  17. Give the name of two satellites.

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  18. Write two uses of satellite.

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  19. What is the orbital velocity of satellite ? Derive its equation.

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  20. Which force is responsible for necessary centripetal force of satellit...

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