A particle of $+$e$+$e charge is analyzed with a mass spectrometer that has a magnetic field BB $=0\mathrm{.}050$ TT$.$ If the particle has a mass of m$=2\mathrm{.}01027$m$=2\mathrm{.}01027$ kgkg and$$a speed of $3\mathrm{.}0105$ m$/$sm$/$s$,$ what is the radius of the path?

Express your answer with the appropriate units.

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rr $=$