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A body weights 63 N on the surface of th...

A body weights 63 N on the surface of the earth. What is the gravitational force on it due to the earth at a height equal to the half the radius of the earth?

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PATHFINDER-GRAVITATION-QUESTION BANK
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  3. A body weights 63 N on the surface of the earth. What is the gravitati...

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  4. A satellite of mass 250 kg is orbiting the earth at a height of 500 km...

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  5. The escape speed of a projectile on the earth's surface is 11.2 km/s. ...

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  7. What is a geo-stationary satellite ?

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  8. If the radius of the earth-shrinks by 2% and its mass remain same, the...

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  9. The radius of the earth is reduced by 4% The mass of the earth remains...

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  10. Discuss the variation of g (i) with the height above the earth's surfa...

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  11. Discuss the variation of g (ii) with depth below the earth's surface.

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  12. Derive an expression for Gravitational potential above the surface of ...

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  13. What is the ratio of the escape velocity to the orbital velocity for a...

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  14. Show that the gravitational potential at a point, distance r from the ...

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  15. The mass and diameter of a planet are twice those of the earth.What wi...

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  16. Define escape velocity.Deduce anexpression for the escape velocity and...

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  17. A body hanging from a spring stretches it by 1 cm at the earth's surf...

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  18. Show that the velocity of a body released at distance r from the centr...

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  19. Suppose a body of mass m lies on an inside surface of a spacecraft rev...

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  20. A rocket is launched vertically from the surface of the earth with a...

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