By which curve will be variation of grav...

By which curve will be variation of gravitational potential of a hollow sphere of radius R with distance be depicted ?

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ALLEN-GRAVITATION-EXERCISE 1

A particle falls on earth : (i) from infinity. (ii) from a height 10...
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The gravitational potential energy is maximum at :
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A projectile of mass m is thrown vertically up with an initial velocit...
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Two small and heavy spheres, each of mass M, are placed a distance r a...
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An artificial satellite moving in a circular orbit around the earth h...
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A particle of mass m is moving in a horizontal circle of radius R unde...
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The escape velocity from the earth is 11.2km//s. If a body is to be pr...
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The escape velocity for the earth is 11.2 km / sec . The mass of anoth...
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