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    For my physics (HL) IA, I am thinking about doing an experiment to do with magnetic accelerators aka Gaussian rail gun. I am not quite sure what variables would be a good idea to change for the experiment. Anybody have any ideas?

    Mass of your bullets (marbles) and their final velocity? Or number of coil rings and final velocity of the marbles as they exit the rail? Or maybe the radius of the coils, and the final velocity of the marbles? (the reason I keep bringing up that variable is that it'll probably be easier to measure lol)....
    Idk lol I suck at physics xD
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