An alpha particle (a helium nucleus,having charge +2e and mass 6.64 × 10^-27 kg) moves head-on at a fixed gold nucleus (having charge +79e) .If the distance of closest approach is 2.0 × 10^-10 m,what was the speed of the alpha particle when it was very far away from the gold? (k = 1/4πε₀
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Question

An alpha particle (a helium nucleus,having charge +2e and mass 6.64 × 10^-27 kg) moves head-on at a fixed gold nucleus (having charge +79e) .If the distance of closest approach is 2.0 × 10^-10 m,what was the speed of the alpha particle when it was very far away from the gold? (k = 1/4πε₀

An alpha particle (a helium nucleus,having charge +2e and mass 6.64 × 10<sup>-27</sup> kg) moves head-on at a fixed gold nucleus (having charge +79e) .If the distance of closest approach is 2.0 × 10<sup>-10</sup> m,what was the speed of the alpha particle when it was very far away from the gold? (k = 1/4πε<sub>0</sub> , A) 2.3 × 10<sup>5</sup> m/s B) 4.6 × 10<sup>5</sup> m/s C) 2.3 × 10<sup>6</sup> m/s D) 4.6 × 10<sup>6</sup> m/s

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The Answer of An alpha particle (a helium nucleus,having charge +2e and mass 6.64 × 10^-27 kg)moves head-on at a fixed gold nucleus (having charge +79e).If the distance of closest approach is 2.0 × 10^-10 m,what was the speed of the alpha particle when it was very far away from the gold? (k = 1/4πε₀ ,

An Alpha Particle (A Helium Nucleus,having Charge +2e and Mass