Assuming that the Earth's atmosphere is a perfect sphere, then the atmosphere's center of mass will be at the point equidistant between Earth's poles (i.e. the center of the Earth!).
the earths core
earth core
Since the atmosphere is more or less symmetric, its center of mass (center of gravity) gravity must be quite close to Earth's center.
Moon gravity is less because the atmosphere and mass and the earths gravity is greater than the moon if you weight yourself in the earth and then you weighted yourself in the moon you would weight less in the moon you could actually float in the moon because of its atmosphere and mass
The earths gravity. The more mass a body has, the more gravity, The Earth has enough mass to hold an atmosphere. The Moon, on the other hand, is not massive enough, and so does not have a high enough gravity, which prevents it from holding an atmosphere.
the center of the earth
Assuming that the atmosphere is distributed evenly all over the Earth, its center of mass is of course at the Earth's center. If for any reason there is more atmosphere on one side than on the other, the center of mass would be slightly away from Earth's center.
the earths core
the center of the earth
earth core
Its weight will change depending on the position, but its mass will hardly change.
The most of the mass of atmosphere is contained in troposphere. It contains most gases.
Since the atmosphere is more or less symmetric, its center of mass (center of gravity) gravity must be quite close to Earth's center.
The Earth's mass, and how far you are from the center of the Earth.
Troposphere. This is the lowest section of the earths atmosphere that contains 75% of the earths atmosphere by mass and 99% of the earths water vapour. This section of the atmosphere starts at the surface and extends 7-20km up, the thickness depending largely on where you are in the world.
It is is a rocky or rocky ice core with a mass of 10 Earths
Outside earths atmosphere its Gravity, and on Earth its Mass and Velocity.