a charged particle a exerts a force of 239un to
A charged particle A exerts a force of 2.39uN to the right on charged particle B when the particles are 12.3 mm apart. Particle B moves straight away from A to make the distance between them 16.4 mm. What vector foce does particle B then exert on A
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a charged particle a exerts a force of 239un to the right on charged particle b when the particles are 123 mm apart particle b moves straight away
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