Repel Definition and 59 Threads

aghhh I just killed a HUGE red spider in my basement. The roof in my basement is not done and it's filled with dark spots where they can hide... brrrr. god I hate spiders. anyone know of a safe way to repel spiders? I have a cat so it can't be poison (especially since he tends to put bugs in...

This has always fasinated me, I am only like a kid so don't hate me! :confused: When u dive into water, as soon as you hit, for a millionith of a second, the surface of the water kind of repels you. It is enough to (from a headdive) break your neck. But after that slight millionth of a...

It's been awhile since I've had physics I, so this problem is giving me a headache. Q) Two very small conducting spheres, each of a mass 1.0 \times 10^{-4}\,\,(kg) , are suspended at a common point by very thin nonconducting threads of a length 0.2 \,\,(m) . A charge Q is placed on each...

You know, these are basic questions, I never wondered why about there. Till a friend of mine told me that the speed of the info. for electrons that they are suppose to repel from each other is the speed of light, thus if two electrons travel faster than light, they wouldn't repel. But why...

I have read many ppl writing that "gravity repels". Howz that possible?

Hey, guys! I'm back! :frown: What exactly makes opposites attract and likes repel? Sure, you put a proton near an electron. They both move towards each other. So, what's happening? Is this just the action of emission and absorption? All particles emitt and absorb according to their...

Why do like charges repel and opposite charges attract?

Hey everyone, got a quickie for u. I'm not sure if there is a proper answer for this question, but could ppl give me brief theories to why superconductors repel magnets no matter what polarity they are. thanks for any input!

I can see how you can attract conductive objects with an electric field, but I'm wondering if it's actually possible to use some sort of electromagnetic phenomena to repel objects, like in Star Trek, or something Also, how does a Tokamak fusion reactor keep the plasma in place with magnetic...