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Define critical velocity and derive an e...

Define critical velocity and derive an expression for the same.
OR
What is critical velocity? Derive an expression for critical velocity of a satellite orbiting at a certain height. Also discuss the formula when satellite is very close to the earth's surface.

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CHETANA PUBLICATION-GRAVITATION-EXERCISE
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  2. What is time period of polar satellite?

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  3. Define critical velocity and derive an expression for the same. OR W...

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  4. Prove that the critical velocity or Orbital velocity for a satellite o...

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  5. Find the gravitational force between the Sun and the Earth.

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  6. Why is weightlessness caused in a spaceraft?

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  7. As we go from one planet to another planet, how will the mass and weig...

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  8. Obtain an expression for the period of a satellite in a circular orbit...

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  9. Derive an expression for time period of a satellite orbiting very clos...

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  10. Define binding energy. State its units and dimensions.

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  11. Derive an expression for binding energy of a body at rest on the earth...

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  12. Define binding energy and obtainan expression for binding energy of a ...

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  13. Where Binding Energy of a satellite will be maximum?

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  14. How much will be the work done to keep the satellite in orbit?

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  15. What happens to K.E. of satellite as it moves away from the surface of...

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  16. Define Latitude.

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  17. Calculate the speed and period of revolution of a satellite orbiting a...

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  18. An artificial satellite makes two revolutions per day around the earth...

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  19. A satellite is going in a circular orbit of radius 4 xx 10^4 km around...

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  20. A satellite is going in a circular orbit of radius 4 xx 10^5 km around...

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