Technically, satellites orbit the Earth in a relatively constant motion, so they don't really "stay" anywhere. In order to remain in the correct orbital path, however, it is necessary for occasional realignment by computer- and/or human-guided rockets.
exchanging information with satellites.
Exchanging information with satellites
The reason that satellites stay in orbit around Earth is because of two factors. Velocity and the gravitational pull between the satellite and the Earth.
Gravity and inertia.
No. That only applies to low Earth orbit. Geostationary satellites orbit beyond it.
Old satellites orbiting near the Earth eventually fall back into the atmosphere and burn. Satellites orbiting farther away stay in orbit indefinitely.
Satellites stay up in space due to how fast they are traveling. If an object is in motion around a planet at the correct speed it will orbit it without crashing towards the planet.
Communications satellites, abbreviated as "comsats".
Satellite technology uses a transponder to receive sings and then transfer them to satellites in other locations. They are used for purposes of space satellites and GPS.
Gravity holds satellites in orbit.
They do not. Artificial satellites are mostly close to the Earth, while the Moon is a quarter-million miles away.
GPS