physics
posted by Toby .
An alpha particle initally moving at a speed of 7.10 x10^5 m/s goes through a potetial difference of 2500V. determine the final speed. thanks!

i know volts * charge is energry and that's equal to kenetic energy but if i rearrange that foormula for vfinal i don't get the answer [8.63^5]
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