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I know that [tex]\[A singly charged particle of Li-7, an isotope of Lithium, is accelerated through a potential difference of 229V and then enters a magnetic with magnitude 0.723T perpendicular to the path of motion. What is the radius of the ion's path in the magnetic field?

R = \frac{{mv}}{{\left| q \right|B}}

\][/tex], but I am unsure how to calculate the velocity, and I certainly don't know how to calculate the charge. My educated guess is that velocity and charge are directly proportional over a potential difference so that they don't matter in this problem, but I don't have any equations relating the three.

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