The electric field points due east and has a magnitude of 4.3 x 105 N/C. The mass of the electron is 9.11 x 10-31 kg and that of the proton is 1.67 x 10-27 kg. Both the proton and electron have charge magnitudes of 1.60 x 10-19 C. What is the algebraic expression for the magnitude a of the acceleration that a charge experiences when placed in an electric field? Express your answer in terms of the magnitude |q| and mass m of the charge, and the magnitude E of the electric field. (Answer using q, m, and E.)