Physics

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What is the electric force between a glass ball that has +4.5 × 10−6 C of charge and a rubber ball that has −7 × 10−6 C of charge when they are separated by a distance of 4.9 cm? The value of the Coulomb constant is 8.98755 × 109 N · m2/C2.

  • Physics -

    F=k•q₁•q₂/r²
    k =8.98755•10⁹ N•m²/C²

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