8. [-/3 Points]
DETAILS
OSCOLPHYS2 18.7.P.042.
Consider the following figure. (If you need to use $\infty$ or $-\infty$, enter INFINITY or -INFINITY, respectively.)
(a)
+q
-2q
10
+q
x (cm)
(b)
0
-2q
10
x (cm)
+q
+3q
(a) Find the total electric field in N/C at x = 5.00 cm in part (b) of the figure above given that q = 5.00 nC.
N/C
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(b) Find the total electric field in N/C at x = 12.80 cm in part (b) of the figure above. (Include the sign of the value in your answer.)
N/C
(c) 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? Use the following as necessary: q.)