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? 4.3x10^-9 C 3.3x10^-9 C O2.3×10 9 C O 1.3x10^-9 C 5.3 ×10 9 C O6.3x10^-9 C
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