Earth's gravitational pull
The amount of force with which an object is pulled down to Earth is known as the force of gravity. On Earth, this force is approximately 9.81 meters per second squared (m/s^2).
It most likely would not be the Earth's gravitational pull. More like the meteor was already shooting towards the Earth or near it enough to head to us. In that case, the Earth's gravity plus the meteor's speed minus the inverse force of the atmosphere equal if it would come down or not. Other than all of that, the poles of the Earth's magnetic force is what pulls meteors in, not the gravity, although it does help. :/
Weight is a result of the Earth pulling us down. The force we are pulled down is dependent on Earth's mass, so on another planet (with a different mass) one would be pulled down in a different manner.
The satellite is being pulled by the earths gravity all of the time, but the satellite also has an orbital velocity, meaning that is is travelling at high speed. These two opposing forces balance out, the 'sideways' speed of the satellite wants to take it away into space, but the gravity of the earth is always pulling it in. The satellite maintains its speed as there there are no frictional forces to slow it down in space, so it maintains an orbit.
GRAVITY!!!!
gravity pulls gas molecules down to earth because the force of it keeps us on the earth
Gravity is the natural force that causes rocks to fall or roll down a hill. As rocks are pulled by the force of gravity, they move downward due to the Earth's gravitational pull.
The force of gravity between me and the earth is the same in both directions. I'm pulled down toward the center of the earth by a force of 190 pounds, and the earth is pulled up toward the center of me by a force of 190 pounds. I call that force "my weight on earth", and it's also the earth's weight on me.
Well it comes down to central force. The closer you are to the eath the more velocity (left and right) you need to keep the satellite in orbit to overcome the force of the earth pulling it down, so it become inpratical in terms of energy needed. Too far away from the eath and gravitational force of the earth might be too weak to keep the satellite from flying of into space. However you can get Low earth orbit satellites http://en.wikipedia.org/wiki/Low_Earth_orbit
Down load Google Earth
Satellites operate through the use of gravity because the force of gravity on the satellite results in circular motion around the earth or any other celestial body, and if that force was too big it would cause the satellite to come crashing down and if it were too small the satellite would just go flying off into space
If you imagine shooting a cannon at a horizontal level, you will see that the cannonball curves toward the Earth as it accelerates "downward" (i.e. toward Earth's surface.)Now imagine this on a much bigger scale; as the object moves forward, it also get pulled down toward the Earth. Since the Earth itself is curved, the cannonball would never hit the ground. If it was going fast enough, it would simply fall into orbit.For an illustration to accompany this, see:http://upload.wikimedia.org/wikipedia/commons/7/73/Newton_Cannon.svg