An electron has an initial velocity v⃗ 0=(7.0×10^4m/s)j^. it enters a region where e^=(1.7i^+8.7j^)×10^4n/c. part adetermine the vector acceleration of the electron as a function of time. express your answer using two significant figures. enter the x and y components of the acceleration separated by a comma. part bat what angle θ is it moving (relative to its initial direction) at t = 2.0 ns ? express your answer using two significant figures.