why are the forces of friction, tension and air resistance associated with electromagnetic force?
In: Physics
Because the concept of ‘contact’ between objects relies on the electromagnetic force, specifically the resistance between two electrons as they approach each other.
The electromagnetic force is the reason you don’t fall through the surface of the earth for example because the electrons on the surface of the ground push against the electrons on the surface of your feet.
Without the electromagnetic force, the whole universe would be a formless, dark space where nothing would be able to clump together.
In fact, that’s exactly what dark mater most likely is, a kind of matter that can’t feel the electromagnetic force.
Because they are all, to varying degrees, deal with intra and inter molecular forces which are primarily governed by electrons whose behavior is governed by the electromagnetic force.
We’re too far away from the nucleus for Strong and Weak nuclear forces to take part, and Gravity is simply too weak at this scale to matter.
There are 4 fundamental forces in the universe, that every other force is derived from. Gravity, electromagnetism, strong and weak nuclear force.
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