(a) Find the total electric field at x = 11.00cm in Figure 18.48(b). 

(b) If the charges are allowed to move and eventually be brought to rest by friction, what will the final charge configuration be? (That is, will there be a single charge, double charge, etc., and what will its value(s) be?)

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(a) (b) 0 +0 0 -29 +9 5 5 +q -2q +3q 10 10 +9 x (cm) x (cm) -q