Why don't the satellites fall off

Why don't the satellites fall off

The moons remain in orbit:

   * Satellites can stay in orbit around the planet very quickly, as they maintain their rotation and not fall under the action of gravity, in addition to carrying their own fuel reserves;  Maintaining a variable orbit to avoid hitting rock masses, and thus being sent into space by a rocket launched from Earth, where it has sufficient energy equal to at least 25,039 miles per hour;  To be outside the atmosphere, and when the missile reaches the specified location, the satellite falls into its orbit,

   * As for the speed of the satellite when it is separated from the operator, it is sufficient to keep it in its orbit for hundreds of years, and in terms of maintaining its orbit, this is done through a balance between two factors, namely: Gravity: Like a satellite that orbits around the Earth, it needs greater speed to resist the force of gravity.  Velocity: The velocity is measured for traveling in a straight line.  The satellite's rotation around the earth launches the satellite into space by a rocket, because this satellite orbits the earth when its velocity is balanced with the Earth's gravity, because without balance it flies either in a straight line towards the earth.  Void,

   * Or located on the Earth, and it should be noted that the satellites revolve around the Earth in different paths, altitudes and speeds, and among the most common orbits that satellites revolve around are: geostationary orbit and polar orbit, where the satellites are launched from west to east over a line  Equator, so they always appear in the same place, moving in the same direction and at the same speed in a circular motion around the earth, as the satellites move around the pole in the direction of north and south from the pole to the pole, and the earth rotates underneath it with a complete survey of the globe through one bar and once  One.

   Satellite orbits:

   * Satellites are placed at a height sufficient to remove the effects of friction with the Earth's atmosphere, because altitudes less than two hundred miles cause the satellite to slow down;  Because of the attractiveness of the atmosphere, which leads to its decrease to the densest part in it, which may lead to its combustion, and it is reported that multi-stage missiles are used to descend on each floor when their fuel runs out.  In order to achieve altitude and orbital velocity,

   * Since the effect of reducing the total mass of the missile while maintaining its orientation is to increase its velocity, allowing it to reach a velocity of five miles per second, the velocity of thrust is balanced with the acceleration of gravity that causes it to stabilize in its orbit, and when it is higher than the lower atmosphere, it deflects  The missile, and on its almost horizontal flight path, to the desired orbital altitude for the satellite.