Electric Forces and Electric Fields7Problem Solutions 15.1Since the charges have opposite signs, the force is one of attraction . Its magnitude is ( )( )()99212982224.510C2.810CNm8.9910 1.110NC3.2 mekqqFr−−−××⋅==×=×15.2The electrical force would need to have the same magnitude as the current gravitational force, or 2giving EmoonEmoone
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