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Physics, 15.04.2020 18:57 kaliahgrey
A plastic rod is charged up by rubbing a wool cloth, and brought to an initially neutral metallic sphere that is insulated from ground. It is allowed to touch the sphere for a few seconds, and then is separated from the sphere by a small distance. After the rod is separated, the rod:A) is repelled by the sphere. B) is attracted to the sphere. C) feels no force due to the sphere.
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