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How does the weight of an object vary wi...

How does the weight of an object vary with respect to mass and radius of the earth. In a hypothetical case, if the diameter of the earth becomes half of its present value and its ,mass becomes four times of its present value, then how would the weight of any object on the surface of the earth be affected?

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MODERN PUBLICATION-GRAVITATION-EXAMPLE
  1. Calculate the average density of the earth terms of g, G and R.

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  2. The earth is acted upon by the gravitational attraction of the sun. Wh...

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  3. How does the weight of an object vary with respect to mass and radius ...

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  4. How does the force of attraction between the two bodies depend upon th...

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  5. Two objects of masses m(1) and m(2) having the same size are dropped s...

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  6. Two objects of masses m(1) and m(2) having the same size are dropped s...

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  7. What is the ratio of the force of gravitation between two masses m1 an...

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  8. What is the ratio of the force of gravitation between two masses m1 an...

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  9. State any one phenomenon related to the universal law of gravitation.

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  10. State two factors on which the gravitational force between two objects...

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  11. The gravitational force between two objects is F. How will the force c...

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  12. Define mass of an object?

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  13. The earth is acted upon by the gravitational attraction of the sun. Wh...

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  14. Two objects of mass M1 and M2 are dropped in vacuum from a height abov...

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  15. Write the units of 'g' and 'G'.

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  16. Mass of an object is 10 kg. What is the weight on the earth (g = 9.8 m...

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  17. An object of mass 2 kg falls with a acceleration of 9.8 ms^-2 towards ...

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  18. Prove that if the earth attracts two bodies placed at the same distanc...

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  19. A man weighs 600 N on earth. What is his mass. (g = 10 ms^-2). On moon...

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  20. A stone fell from the top of a twer table 5 seconds to reach the groun...

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