physics

A charge of 16.0 nC is uniformly distributed along a thin, flexible rod of length 31.0 cm. The rod is then bent into a semicircle, evaluate the electric field strength from the centre

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  1. nobody knows

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  2. r = .31/pi
    I'm going to go out a limb and say side to side effects cancel and we cab treat it a s a point charge at the center of the semi-circle.
    E = kQ/r^2 (from above)

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