Gravitation

Related Questions

• The mass of the earth is 81 times that of the moon and the radius of the earth is 3.5 times that of the moon. The ratio of the acceleration due to gravity at the surface of the moon to that at the surface of the earth is

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• $v_e$ and ${v_p}$ denotes the escape velocity from the earth and another planet having twice the radius and the same mean density as the earth. Then

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• The gravitational force between two point masses ${m_1}$ and ${m_2}$ at separation r is given by $F = k\frac{{{m_1}{m_2}}}{{{r^2}}}$ The constant k

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• The escape velocity of a body on an imaginary planet which is thrice the radius of the earth and double the mass of the earth is $({v_e}$ is the escape velocity of earth)

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• If radius of the earth contracts 2% and its mass remains the same, then weight of the body at the earth surface

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