Show the nature of the following graph for a satellite orbiting the earth. T.E. vs orbital radius R.

What will be the nature of x - t graph for a uniform motion?

The gravitational force between a hollow spherical shell (of radius R and uniform density) and a point mass is F. Show the nature of F vs r graph whee r is the distance of the point form the centre of the hollow spherical shell of uniform density.

Answer the following :- An astronaut inside a small space ship orbiting around the earth cannot detect gravity. If the space station orbiting around the earth has a large size, can he hope to detect gravity ?

Satellites orbiting the earth ahve finitelife and sometimes debris of satellitesfall to the earth. This is because

The orbit of a geostationary satellite is called __ orbit.

As you have learnt in the text, a geostationary satellite orbits the earth at a height of nearly 36,000 km from the surface of the earth. What is the potential due to earth’s gravity at the site of this satellite ? (Take the potential energy at infinity to be zero). Mass of the earth = 6.0Xx10^24 kg , radius = 6400 km.