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As you have learnt in the text, a geosta...

As you have learnt in the text, a geostationary satellite orbits the earth at a height of nearly 36,000 km from the surface of the earth. What is the potential due to earth’s gravity at the site of this satellite ? (Take the potential energy at infinity to be zero). Mass of the earth `= 6.0Xx10^24 kg`, radius = 6400 km.

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MODERN PUBLICATION-Unit Test - Gravitation-Example
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  2. Two heavy spheres each of mass 100 kg and radius 0.10 m are placed 1.0...

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  3. As you have learnt in the text, a geostationary satellite orbits the e...

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  4. A star 2.5 times the mass of the sun and collapsed to a size of 12 km ...

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  5. A spaceship is stationed on Mars. How much energy must be expended on ...

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  6. A rocket is fired ‘vertically’ from the surface of mars with a speed o...

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  7. Derive Newton's law of gravitation from Kepler's law.

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  8. Imagine a planetary system in which the gravitational force varied as ...

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  9. In an imaginary planetary systems the central star has a mass as our s...

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  10. Discuss, whether the weight of a body should be greater in night when ...

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  11. A tunnel is dug through the centre of the earth. Show that a body of m...

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  12. Suppose that the gravitational force varies inversely as the nth power...

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  13. Average density of the earth

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  14. The change in the value of g at a heighth above the surface of the ear...

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  15. If g is the acceleration due to gravity on the earth's surface, what w...

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  16. Energy required to move a body of mass m from an orbit of radius 2 R t...

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  17. What will be the kinetic energy needed to project a body of mass m fro...

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  18. Two bodies of masses m and 4 m are placed at a distance r. The gravita...

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  19. A particle of mass 10g is kept on the surface of a uniform sphere of m...

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  20. The escape velocity of a particle of mass m varies directly as

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