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# Gauss Rifle

Is there a mathematical relationship between the spacing of the magnets across each stage in a Gauss rifle, and the velocity of the final ball bearing that is fired from it?
If so, what is this relationship?

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Gauss Rfle (Also called Coil Gun)

A Gauss Rifle (also known as a gauss gun or a coil gun) is a Magnetic Linear Accelerator. In a Gauss Rifle, the barrel is a solenoid: essentially a big coil of wire. If you send a current through a coil of wire, it creates a magnetic field in the middle of the coil. This magnetic field is used to accelerate a magnetic projectile, essentially pulling it along the barrel of the gun.

Get more details here http://en.wikipedia.org/wiki/Coilgun