Gravitation

Related Questions

• If M the mass of the earth and R its radius, the ratio of the gravitational acceleration and the gravitational constant is

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• A mass of $6 \times {10^{24}}kg$ is to be compressed in a sphere in such a way that the escape velocity from the sphere is $3 \times {10^8}m\,/s$. Radius of the sphere should be $(G = 6.67 \times {10^{ - 11}}N - {m^2}/k{g^2})$

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• If both the mass and the radius of the earth decrease by 1%, the value of the acceleration due to gravity will

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• Let g be the acceleration due to gravity at earth's surface and K be the rotational kinetic energy of the earth. Suppose the earth's radius decreases by 2% keeping all other quantities same, then

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• In some region, the gravitational field is zero. The gravitational potential in this region

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