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shseo0315
Aug31-10, 04:30 PM
Why is it that it's the gravitational force that keeps me on the ground?

Rather than the electrical force?

In general, and by the equation, electrical force is much stronger than the gravitational force!

Sakha
Aug31-10, 04:35 PM
Electrical force are balanced. In other words, the summation of electrical charges on Earth should be zero, so there is no forces. You are made of atoms, which are have 0 electrical charge, and the Earth is made of atoms too, so no force in between.

Doc Al
Aug31-10, 04:37 PM
In general, and by the equation, electrical force is much stronger than the gravitational force!
Between a pair of charged elementary particles--like an electron or proton--the electrical force is much stronger than the gravitational force. But you are not a charged particle--you have a huge mass (compared to either of those) and essentially zero charge.

russ_watters
Aug31-10, 04:39 PM
Well, electromagnetic force keeps you from falling THROUGH the ground but since you have no net charge, there is no basis for a long distance force.

[edit] ....quick draw fail!

Doc Al
Aug31-10, 04:52 PM
....quick draw fail!
:rofl:

shseo0315
Aug31-10, 04:53 PM
Thank you folks!