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Question 11 of 13 - /1 WIN - View Policies Current Attempt in Progress At some instant the velocity components of an electron moving between two charged parallel plates are Vx=1.7x105 m/s and Vy=3.6x105 m/s. Suppose the electric field between the plates is uniform and given by E = (120N/C ) j . In unit-vector notation, what are (a) the electron's acceleration in that field and (b) the electron's velocity when its x coordinate has changed by 2.1 cm? (a) ( i Jj . (b) ( i i eTextbook and Media Hint AttomIn the figure an electron (e) is to be released from rest on the central axis of a uniformly charged disk of radius R. The surface charge density on the disk is +4.08 JC/m2. What is the magnitude of the electron's initial acceleration if it is released at a distance (a) R, (b) R/106, and (c) R/1080 from the center of the disk? (a) Number i 1187 Units m/s^2 (b) Number i 4.014 Units m/s ^ 2 (c) Number i 4.049 Units m/s^2 eTextbook and Media