question archive Sphere 1 has a charge 10 \mu CμC and sphere 2 has charge 20 \mu CμC
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Sphere 1 has a charge 10 \mu CμC and sphere 2 has charge 20 \mu CμC. The force that sphere 1 exerts on sphere 2 is 4.5N. What is the magnitude of the force in Newton that sphere 2 exerts on sphere 1?