Gravitation

Related Questions

• R and r are the radii of the earth and moon respectively. ${\rho _e}$ and ${\rho _m}$ are the densities of earth and moon respectively. The ratio of the accelerations due to gravity on the surfaces of earth and moon is

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• The time period of a simple pendulum on a freely moving artificial satellite is

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• If earth is supposed to be a sphere of radius R, if g30 is value of acceleration due to gravity at latitude of 30o and g at the equator, the value of $g - {g_{{{30}^o}}}$ is

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• The radius of a planet is $\frac{1}{4}$ of earth’s radius and its acceleration due to gravity is double that of earth’s acceleration due to gravity. How many times will the escape velocity at the planet’s surface be as compared to its value on earth’s surface

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• The centripetal force acting on a satellite orbiting round the earth and the gravitational force of earth acting on the satellite both equal F. The net force on the satellite is

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