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What is escape velocity? Find an express...

What is escape velocity? Find an expression for the escape velocity of a body when projected from the surface of the earth. Show that the escape velocity form the earth's surface is about 11.2 km/sec.

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R G PUBLICATION-GRAVIATION-EXERCISE
  1. What is the relation between gravitational intersity and gravitational...

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  2. If the radius of earth strinks by one percent it mass remaining the sa...

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  3. What is escape velocity? Find an expression for the escape velocity of...

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  4. Under what condition gravitation potential of a body will be zero?

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  5. What is artificial satellite?

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  6. What is time period and period of revolution?

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  7. Write the unit and dimension of G.

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  8. Write Kepler's laws on planetary motion.

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  9. What is orbital velocity? Derive it expression.

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  10. What is the difference between inertial mass and gravitational mass ?

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  11. Why gravitational potential not unifrom all places.

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  12. What is artificial satellite?

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  13. What is a Geotstationary Satellite? State an essential feature of it.

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  14. Write about weightlessness in space.

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  15. The orbital radius of earth in 1.49 xx 10^13 cm. Calculate the mass of...

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  16. A saturn year is 29.3 times the earth year. How far is the saturn from...

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  17. A rocket is fired from the earth towards the sun. At what distance for...

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  18. How acceleration due to gravity changes with variation of height 'h'.

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  19. Drive the expression for time period fo an artificial satellite.

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  20. How acceleration due to gravity changes with depth 'd'.

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