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A person sitting in a chair in a satellite feels weightless because
(a)the earth does not attract the object in a satellite.
(b)the normal force by the chair on the person balances the earth's attraction.
(c)the normal force is zero.
(d)the person in the satellite is not accelerated.

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Important Questions on Gravitation
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The acceleration due to gravity on the surface of earth varies

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The acceleration due to gravity at the equatorial plane is

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If the earth shrinks without a change in mass, what will be the effect on the value of acceleration due to gravity ?

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If a body of mass is taken to the centre of the earth, its weight will be

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If the earth were to stop rotating, the value of acceleration due to gravity in Mumbai will

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At any point within the interior of the earth, the acceleration due to gravity varies with (distance between the centre of the earth and the point) as

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A geostationary satellite

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A geostationary satellite has an orbital period of
