0.290 m +0.400 µC -0.220 μC In the figure, a small spherical insulator of mass 6 × 10-2kg 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 e with the vertical, as shown. What is the angle 0? ( 1 ke 4 x T x Eo = 8,99 x 10°N.m²/c²2, g = 9,80 m/52)

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