Question

In what mechanism do the artificial satellites revolve around the earth in fixed orbits ?

Answer 1

When an artificial satellite orbits the earth , it's speed is balanced by the pull of Earth's gravity ..... Without this the satellite would only then move in a straight line .....
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Answer 2

artificial satellite, object constructed by humans and placed in orbit around the earth or other celestial body (see also spaceprobe). The satellite is lifted from theearth's surface by a rocket and, once placed in orbit, maintains its motion without further rocket propulsion.
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