Gravitation Tes...

The mass of the moon is $$\left(\dfrac{1}{8}\right)$$ of the earth but the gravitational pull is $$\left(\dfrac{1}{6}\right)$$ of the earth. It is due to the fact that:

If density of a planet is double that of the earth and the radius 1.5 times that of the earth, the acceleration due to gravity on the surface of the planet is: 

If the radius of the earth is made three times, keeping the mass constant, then the weight of a body on the earth's surface will be as compared to its previous value is 

Two spheres of radius $$r=0.5 \ m$$ and mass $$ m = 1 \ kg$$ are placed in contact with each other, what will be the gravitational force between them:

A body of weight $$W_1$$ is suspended from the ceiling of a room through a chain of weight $$W_2$$. The ceiling pulls the chain by a force equal to:

The ratio between masses of two planets is 2 : 3 and the ratio between their radii is 3 : 2. The ratio between acceleration due to gravity on these two planets is:

A cricket ball is thrown up with a speed of $$19.6\ ms^{-1}$$. The maximum height it can reach is

The SI unit of the universal gravitational constant G:

$$F = G\dfrac{m_1m_2}{R^2}$$ is the formula to prove ______. 

The gravitational force $$F_{g}$$ between two objects does not depend on