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A singly charged 7Li ion has a mass of 1.16 10-26 kg. It is accelerated through...

A singly charged 7Li ion has a mass of 1.16 10-26 kg. It is accelerated through a potential difference of 485 V and subsequently enters a uniform magnetic field of magnitude 0.422 T perpendicular to the ion's velocity. Find the radius of its path.

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