Three 2.50-?C charges are placed on tiny conducting spheres at the ends of 1.00 m-long strings that are connected at 120° angles as shown below. The magnitude, in N, of the force on any one of the charges is
?
?
a.
1.88 × 10?2.
b.
3.25 × 10?2.
c.
3.73 × 10?2.
d.
6.50 × 10?2.
e.
7.50 × 10?2.
b
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