In Fig. 21-26a, particle 1 (of charge q1) and particle 2
Chapter 21, Problem 16(choose chapter or problem)
In Fig. 21-26a, particle 1 (of charge q1) and particle 2 (of charge q2) are fixed in place on an x axis, 8.00 cm apart. Particle 3 (of charge q3 = +8.00 X 10-19 C) is to be placed on the line between particles 1 and 2 so that they produce a net electrostatic force F;,uel on it. Figure 21-26b gives the x component of that force versus the coordinate x at which particle 3 is placed. The scale of the x axis is set by Xs = 8.0 cm.What are (a) the sign of charge ql and (b) the ratio q21q1? 2 @ x f-+----+--+-I- x (em) (a) -1 (b) Fig. 21-26 16.
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