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When does an object float when placed on...

When does an object float when placed on the surface of water ?

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MBD-GRAVITATION-Example
  1. What is the mass of the earth?

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  2. What is essential property of matter- mass or weight ?

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  3. What is SI unit of weight of a body?

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  4. The earth's gravitational force an acceleration of 5ms^-2 on a 1kg ...

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  5. Why one can jump higher on the surface of moon than on the earth?

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  6. Give the value of universal gravitational constant in S.I. units.

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  7. The value of 'G' on the surface of earth is 6.67xx 10^- 11 Nm^2//kg^2....

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

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  9. Write the formula to find the magnitude of gravitational force between...

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  10. Can the mass of a body be zero.

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  11. You find your mass to be 42 kg on a weighing machine. Is your mass mor...

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  12. How does the value of 'g' vary from equator to poles ?

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  13. What will be the weight of an object on the earth whose mass is 10 kg ...

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  14. Write the S.I. unit of G.

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  15. When does an object float when placed on the surface of water ?

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  16. While swimming why do we feel light ?

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  17. Why does a truck or a motor-bus has much wider tyres ?

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  18. An army tank weighing more than a hundred tonne move conveniently on a...

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  19. What is the unit of relative density ? Why ?

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  20. The weight of an object on the moon is…….. of its weight on the earth.

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