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Two small identical spheres each of weight 4x10^-3 N share and electric charge. They are suspended from the same
point by silk threads 1 m long, when they reach equilibrium their centers are separated by 20 mm. What is the charge
on each sphere?
O4.3x10^-9 C
O3.3x10^-9 C
O2.3x10^-9 C
O 1.3 *10^-9 C
:52
:56
:53
5.3x10^-9 C
O6.3x10^-9 C
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