In the figure,a small spherical insulator of mass 6.00 × 10-2 kg and charge +0.400 μC is hung by a thin wire of negligible mass.A charge of -0.220 μC is held 0.290 m away from the sphere and directly to the right of it,so the wire makes an angle θ with the vertical,as shown.What is the angle θ? (k = 1/4πε0 = 8.99 × 109 N ∙ m2/C2) 
A) 0.917°
B) 1.10°
C) 1.30°
D) 1.50°
E) 1.70°
Correct Answer:
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