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A body weighs 90 N on the surface of ear...

A body weighs 90 N on the surface of earth. Calculate the gravitational force on the body at a height equal to one-third of the radius of earth.

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The correct Answer is:
50.625 N
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MODERN PUBLICATION-GRAVITATION-Practice Problems
  1. Find the weight of a body at a height of 100 km above the surface of e...

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  2. Calculate the percentage change in weight of a body if taken to a heig...

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  3. A body weighs 90 N on the surface of earth. Calculate the gravitationa...

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  4. How much below the Earth's surface the value of g reduces to 30% of it...

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  5. At what depth below the surface of earth the acceleration due to gravi...

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  6. Calculate the percentage decrease in weight of a body when taken to a ...

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  7. Calculate the ratio of weights of a body when it is taken to 80 km abo...

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  8. Calculate the change in weight of a body of mass 5 kg when it is taken...

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  9. At which angular speed the earth should rotates so that the apparent w...

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  10. What will be acceleration due to gravity at the earth's surface of lat...

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  11. The escape velocity of a body from the earth is 11.2 km//s. If a body ...

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  12. A planet has a mass 120 times that of earth and radius is 5 times the ...

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  13. A body is projected vertically upwards from the earth's surface. The b...

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  14. Calculate the orbital velocity and time period of revolution of a sate...

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  15. The International Space Stations (ISS), a habitable artificial satelli...

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  16. A spaceship of mass 70 kg is revolving in a circular orbit at a height...

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  17. Two bodies of masses 5 kg and 10 kg are lying at a distance of 0.5 m. ...

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  18. Find the distance of a point from the earth's centre where the resulta...

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  19. Calculate the work done in bringing four particles each of mass 10 g a...

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  20. Calculate the work required to raise a body of mass m to a height h ju...

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