Question 19N.2.SL.TZ0.5b(i)

$F=q\times E$ OR  $F=1.6\times {10}^{-19}\times 3.4\times {10}^8=5.4\times {10}^{-11} «\mathrm{N}»$ ✔

$a=«\frac{5.4\times {10}^{-11}}{9.1\times {10}^{-31}}=» 5.9\times {10}^{19}« \mathrm{m} {\mathrm{s}}^{-2}»$✔

NOTE: Ignore any negative sign.
Award [1] for a calculation leading to $a=« \mathrm{m} {\mathrm{s}}^{-2}»$
Award [2] for bald correct answer