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Introductory Physics Homework Help
Balance of forces for two charged spheres hanging from the ceiling
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[QUOTE=".Scott, post: 6853395, member: 489053"] If I understand you, you are concerned about the change in mass resulting from the charge that a ball may be holding. The givens are that the ropes are at equal angles and there is no other force applied to the balls (for example, between a ball and the ceiling). If there is no other context to this question, I would explicitly invoke massless electrons - from the same source as the massless ropes commonly used in problems such as these - or from the same source as a ceiling that applies no electrostatic force to the hanging balls. [/QUOTE]
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Balance of forces for two charged spheres hanging from the ceiling
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