Question 19N.2.SL.TZ0.b(i)

$qvB=\frac{m{v}^2}{R}$✔

$R=\frac{1.67\times {10}^{-27}\times 2.0\times {10}^6}{1.6\times {10}^{-19}\times 0.35}$ OR 0.060 « m »

NOTE: Award MP2 for full replacement or correct answer to at least 2 significant figures