Gravitation Tes...

A body, the mass and the weight of which were already determined at the Equator, is now placed at the Pole. In this context, choose the correct statement from the following:

If the masses of two bodies are doubled and the distance between them is halved, then the new gravitational force between them is how many times the original?

A student is sitting on a chair as shown in figure.
Which statement is correct for the mass of the chair on the Moon and the mass of the chair on the earth ?
Tick the correct statement.

An oil layer which is 9 cm deep lies above a depth of water. A uniform cylinder of wood of length 25 cm is floating vertically upright in the two liquids as shown in the diagram. If 5 cm of the wooden cylinder lies above the oil surface, what is the density of the wood?
(The density of the oil is 0.9 g $$cm^{-3}$$ and density of water is 1.0 g $$cm^{-3}$$.)

The ratio of SI units to CGS units of g is.

If the gravitational mass of body on the moon be denoted by $$M_m$$ and that on the earth be $$M_e$$, then.

If a rock is brought from the surface of the moon.

Astronomers have discovered a planet orbiting a nearby star. It is estimated that the mass of this planet is 16 times that of our earth and its density is one-fourth of the earth's density. Assume that planets are spheres of uniform density. If your weight on the earth is 1000 N, then your weight on this planet would be

When an object is thrown up, the force of gravity.

Formula for density and relative density/ specific gravity respectively are: