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Author Question: An electric dipole with 5.0 C point charges is positioned so that the positive charge is to the ... (Read 125 times)

ENagel

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on: Oct 11, 2019

Question 1

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 ,
◦ 2.3 × 106 m/s
◦ 4.6 × 106 m/s
◦ 4.6 × 105 m/s
◦ 2.3 × 105 m/s

Question 2

An electric dipole with ±5.0 μC point charges is positioned so that the positive charge is to the right of the origin and the negative charge is at the origin. How much work does it take to bring a point charge from very far away to the point x = 3.0 mm, y = 0.0 mm? (k = 1/4πε0 = 9.0 × 109 N ∙ m2/C2)
◦ 110 J
◦ 49 J
◦ 23 J
◦ 19 J
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Marked as best answer by ENagel on Oct 11, 2019

voltaire123

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Reply #1 on: Oct 11, 2019
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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ENagel

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Reply #2 on: Oct 11, 2019
TY


voltaire123

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Reply #3 on: Oct 11, 2019
You're welcome


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