[2/4 Points] DETAILS PREVIOUS ANSWERS COLFUNPHYS1 17.P.021. MY NOTES PRACTICE ANOTHER A 1.94 x 10-9 C charge has coordinates x = 0, y = -2.00; a 2.85 x 1079 C charge has coordinates x = 3.00, y = 0; and a -4.60 x 10-9 C charge has coordinates x = 3.00, y = 4.00, where all distances are in cm. Determine magnitude and direction for the electric field at the origin and the instantaneous acceleration of a proton placed at the origin. (a) Determine the magnitude and direction for the electric field at the origin (measure the angle counterclockwise from the positive x-axis). magnitude 5.985 N/C X direction 108.07 (b) Determine the magnitude and direction for the instantaneous acceleration of a proton placed at the origin (measure the angle counterclockwise from the positive x-axis). magnitude 5.734e8 m/s^2 x direction 108.07