Generally speaking, if an object has more mass than another, it will exert more gravitational force.
Ex1: The sun has more mass than Jupiter, so it exerts more gravity, while Jupiter exerts more than Earth as you'll be crushed within it's atmosphere.
Ex2: An asteroid has less mass (usually) than mars or the moon, so it will produce less gravitational force than either planetary body.
The force of Earth's gravitational strength is an average 9.8N/kg downward. (newtons/kilogram)
no it varies with different planets. the eath has a force of 10n including weight jupiter varies aswell
The gravitational field force on Earth is approximately 9.81 Newtons per kilogram, denoted as 9.81 m/s². This represents the acceleration due to gravity that all objects experience near Earth's surface. It is the force that pulls objects towards the center of the Earth.
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
what force caused the earth to collect rocks and dust in its path
The gravity at the center of the Earth is zero because the mass around you causes gravity to be in equilibrium. It is pulling in all directions equally, resulting in a net zero gravitational force at the center.
Gravitational acceleration near Earth's surface is about 9.8 meters/second2. Equivalently, every kilogram - near Earth's surface - has a weight of about 9.8 newton.
to thank the eath
The sun's immense gravity creates a central force that keeps the planets in orbit around it, a phenomenon known as gravity-assisted motion. This gravitational force is balanced by the planets' inertia, resulting in stable orbits. This gravitational interaction is what governs the motion of all the planets in the solar system.
it didn't so don't ask
There is no such place as "eath" in the solar system.
the sun moves around the eath not the eath moves around the sun by falaby66