# Recent content by A M

1. ### B Mass Defect: Is my understanding correct?

Yes you're right, but to be honest, I've already given up writing that article. Anyway, thanks for your correction! :smile:

3. ### B Coulomb Force: Is my understanding correct?

Even for beginners?
4. ### B Coulomb Force: Is my understanding correct?

I hope you don't mind me asking, but could you be a bit more explicit?
5. ### B Coulomb Force: Is my understanding correct?

Do you really mean I should write something new? I'm not a scientist...
6. ### B Coulomb Force: Is my understanding correct?

What if I show the diagrams of each term and then combine them together? E.g. for the shape of energy due to strong nuclear force I can say this force has short range characteristics and thus for lightest nuclei the energy due to the strong force grows rapidly. But this trend approaches a limit...
7. ### B Coulomb Force: Is my understanding correct?

The reverse; an unclear explanation that's correct is not preferable to me! I'm not. If you see my first posts, you'll understand that I accepted my mistakes, improved my understanding, and edited my article. If you consider the post#20, you'll know that I worked hard to improve my...
8. ### B Coulomb Force: Is my understanding correct?

Just think a 'beginner' with "admitted level of knowledge" wants to read this from Wikipedia. At first it says $Q=Ze$; so $E$ 'equals' $(Ze)^2/(r_0 A^{1/3})$. But because $Z^2≈Z(Z-1)$, $E$ is 'almost equal to' $3e^2{Z(Z-1)}/20πε_0r_0 A^{1/3}$. Doesn't it really mean that $Z(Z-1)$...
9. ### B The Strong Nuclear Force: Is my understanding correct?

By this statement, I just meant that my understanding of this force is in contrast with what has been said, and thus it is getting 'more and more confusing to me'. I did not mean that "their contributions" are getting worse. I'm not a native or a good English speaker. I sometimes can't express...
10. ### B Coulomb Force: Is my understanding correct?

Yes, I know, but I think the explanation of most online sources isn't correct; For example I've seen Wikipedia, washington.edu, and Lecture 19. In washington and lecture, it's written that the dependence is on $Z^2$. And also the way $Z(Z-1)$ is explained in wiki and lecture, can be by...
11. ### B Coulomb Force: Is my understanding correct?

But I don't agree. As I said we can consider the Coulomb energy of hydrogen as zero, and then use $Z^2$ for other nuclides. As written in Wikipedia & int.washington.edu , a more reliable version is $Z^2$, but since $Z^2≈Z(Z-1)$ and it goes to zero for hydrogen, we use $Z(Z-1)$.
12. ### B Coulomb Force: Is my understanding correct?

I've just decided to remove that formula; because the Liquid Drop Model & SEMF provide a poor (and even wrong) fit for lightest nuclei. And also as you said, if I mention this formula in an introduction article, I should give a motivation and thus a lot of text would be added. SEMF: Coulomb...
13. ### B Coulomb Force: Is my understanding correct?

The article I want to publish in PF 'insights blog'. I'm told to share my basic understanding first and ask if they're correct. The post #10 is a small part of that article.
14. ### B Coulomb Force: Is my understanding correct?

Yes, answering questions is useful, but a thorough understanding of 'fundamental' definitions is a better choice. (For example if you knew what exactly a radioactive decay is, or how to calculate released/utilized energy in nuclear reactions, you would understand this part better.) Well, the...
15. ### B Coulomb Force: Is my understanding correct?

I'm glad to hear it! This is exactly the question written in my article. I know you won't wait until my article gets published, so I send you the related part: Thus, electric forces do not hold nuclei together, because they act in the opposite direction. What exactly confines these positively...