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(a) A sphere is attached to a filament of length L = 21.7 cm and suspended from the ceiling, as shown in the figure. A uniform electric field points to the right in the figure. When 0 = 16.3°, the sphere is in
equilibrium. Find the net charge on the sphere (in µC).
E = 1.00 x 103 N/C
m = 2.00 g
(b) What If? If the electric field is suddenly turned off, what is the speed of the sphere at the bottom of its swing (in m/s)?
m/s

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