Ok so, i think this is kinda a basic question but here goes. I am building a machine that uses magnets and desperately need to eliminate a zero point so the movement will be smooth so what i need to know is if you have a magnet being attracted to substance Q and the magnet has a 3cm distance from substance Q and is being attracted to substance Q at a force of X then will an identical magnet repelling substance Q at a distance of 3cm experience a force of -X? or is their a distance ratio? Of course substance Q is magnetic with + and - poles. any info or help would be greatly appreciated.