An alpha particle with charge +2.0 e is sent at high speed toward a silver nucleus with charge +47e. What is the electric force acting on the alpha particle when the alpha particle is 4.2 × 10−14 m from the silver nucleus? The value of the Coulomb constant is 8.99 × 10 9 N·m2/C2.
1. Unable to determine
2. 12.2639 N, repulsive
3. 13.0467 N, repulsive
4. 12.2639 N, attractive
5. 13.0467 N, attractive
6. None of these
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