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Is the gravitational force between two ...

Is the gravitational force between two bodies in air equal to that inside water ?

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Gravitational force is

What will be the change in the gravitational force between two bodies if both the masses and the distance are doubled ?

According to Newton's law of gravitation , everybody in this universe attracts every other body with a force, which is directly proportional to the product of their masses and the inversely proportional to the square of the distance between their centres, i.e., F prop (m_1m_2)/(r^2) or F=G(m_1m_2)/(r^2) where G is universal gravitational constant =6.67xx10^(-11)N*m^2*kg^(-2) . Read the above passage and answer the following questions : (ii) How is the gravitational force between two bodies affected when distance between them is halved ?

Statement I: Gravitational force between two masses in air is F. if they are immersed in water force will remain F. Statement II: Gravitational force does not depend on the medium between the masses.

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?

Does gravitational force depend on temperature ?

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

The electrostatic force between two point charges and the gravitational attractive force between two point masses- both are inversely proportional to the square of the distance between the charges and the masses, respectively. (1)(a) Compare the eletrostatic force (F_(C)) and the gravitational force (F_(G)) between an electron and a proton. (b) Compare F_(C) and F_(G) between two protons. (ii) Find out the accelerations of an electron and of a proton due to the electrostatic force between them when htey are placed at a distance of 1 Å

Two lead spheres are kept at a distance of 30 cm . The mass of each sphere is 100 kg. The mutual force of gravitational attraction between them is equal to the weight of a mass of 0.75 mg. Determine the gravitational constant .

CHHAYA PUBLICATION-NEWTONIAN GRAVITATION AND PLANETARY MOTION-EXERCISE (Very Short Answer Type Questions)
  1. What is the dimension of G ?

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  2. The gravitational force is a conservative force' true or false ?

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  3. Is the gravitational force between two bodies in air equal to that in...

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  4. Does gravitational force depend on temperature ?

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  5. State whether your weight will increase or decrease if the daily rotat...

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  6. What will be the gravitational potential on the surface of a planet of...

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  7. If the potential and kinetic energies of an artificial satellite revol...

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  8. If a body of mass m is at a distance r in the gravitational field of ...

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  9. What is the weight of a body at the centre of the earth ?

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  10. What is the value of the acceleration due to gravity at the centre of ...

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  11. Where does a body weight more at the pole or at the equator ?

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  12. What is the value of the acceleration due to gravity of all bodies (he...

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  13. Write down the relation between g and G .

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  14. What is the relation between the mean density of the earth and G ?

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  15. Write down the variation of the acceleration due to gravity at a point...

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  16. The value of g at the poles is greater than its value at the equator -...

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  17. What is the value of the acceleration due to gravity on the surface o...

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  18. The decrease in the acceleration due to gravity at a height above the ...

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  19. The acceleration due to gravity at a height above the earth's surface ...

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  20. Give the value of the angular velocity of the earth for which the acce...

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