How many natural satellites does the earth have ?

The gravitational force due to the earth also acts on the moon because of which it revolves around the earth. Similar situation exists for the artificial satellites orbiting the earth. The moon and the artificial satellites orbit the earth. The earth attracts them towards itself but unlike the falling apple,they do not fall on the earth, why?

The height of a communication satellite from the earth's surface is about

How many surfaces does a cone have ?

How many vertices does a pentagonal pyramid have?

Assertion: The artifical satellite does not have any fuel but even then it remains orbiting around the earth. Reason: The necessary centripetal force required to move the satellite in an ·orbit around the earth is provided by the gravitational force of attraction between the satellite and the earth.

Persons sitting in an artificial satellite orbiting around the earth have

When a satellite moves around the earth (consider elliptical orbits),

How many times does the sea level at the coast change?