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Test on Gravitation -1

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Question 1

If R is the radius of the earth and g the acceleration due to gravity on the earth's surface, the mean density of the earth is-

Question 2

The weight of an object in the coal mine, sea level, at the top of the mountain are W₁, W₂ and W₃ respectively, then-

Question 3

Two satellites move in circular orbits around the Earth at distances 9000 km and 9010 km from the centre of the earth. If the nearer satellite has a period of revolution of 90 minutes around the Earth, then the difference in the periods of revolution around the Earth is

Question 4

A satellite of mass m is orbiting around the earth at a distance r from the centre of the earth, if it stopped suddenly the loss in total energy will be

Question 5

A satellite of mass m is orbiting the earth at a height h from its surface. If M is the mass of the earth and R its radius, the kinetic energy of the satellite is

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Dec 14JEE & BITSAT