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MMLU / Two objects, A and B, have equal charge and equal mass. Neither body is in…

Problem

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question

Two objects, A and B, have equal charge and equal mass. Neither body is in motion because the gravitational and electrostatic forces between them are equal. If the mass of Object A is halved, equilibrium will be maintained if

choices

  1. the charge on Object A were doubled
  2. the charge on Object B were halved
  3. the charge on Object B were doubled
  4. the mass on Object B were halved

subject

high_school_physics

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Official source

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