An electron is near a positive ion of charge +9e and a negative ion of charge −8e (see the figure below). (take a = 3.68 µm, b = 3.68 µm, and θ = 65.9°.) (a) find the magnitude and direction of the resultant force on the electron. (let right be the +x-direction. measure the angle counter-clockwise from the +x-axis.) magnitude direction ° (b) find the magnitude and direction of the electron's instantaneous acceleration (let right be the +x-direction. measure the angle counter-clockwise from the +x-axis.)