Answer Happy

A charged oil drop of mass mand electric charge falling through air experiences are stive for Starting from rest, it falls for a time interval 7. Attimet 71 an oscillating electric field E Enconwth turned on. (Suppose that zo att0 and is positive in the downward direction) 1. For 0 <<< t, the motion of the partide is best described by which of the following for a{t); (a) Ae* (1) * (d) At - Be* +, for some constants A, B,C. or 2 O(a) (b) OC Old) 2. Suppose that the steady state motion after t > T; is described by z(t) A cos(ut +). The values of the constants are qE 1. A=(a) mw/w + (b)/2 +(1 - e 2 (0%T? (0) g 0) d O(a) O(b) O(c) O(d) ( 97; 72 2. tan 8 = (a) 1-e Mi (b) (0) (d) 0 WT (d) O(a) (b) of the dron after T is best described by which of the following graphs OC)
described by e(t) A com(t) The of the constants are 1.A (2 14-) 19*(1 am cogno 1-a ( (b) (c) 2. tan 8 - (a) w (b) low (1) (a) (b) (0 (d) 3. The motion z(t) of the drop after T is best described by which of the following graphs 2011 ZA 2 NAA (1) (2) t (3) (4) 20) (1) (2) (3) (4)