Gravitation

Related Questions

• The gravitational field due to a mass distribution is $E = K/{x^3}$ in the x-direction. (K is a constant). Taking the gravitational potential to be zero at infinity, its value at a distance x 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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• Mass M is divided into two parts $xM$ and $(1 - x)\,M$. For a given separation, the value of x for which the gravitational attraction between the two pieces becomes maximum is

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• Radius of orbit of satellite of earth is R. Its kinetic energy is proportional to

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• If V, R and g denote respectively the escape velocity from the surface of the earth radius of the earth, and acceleration due to gravity, then the correct equation is

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