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HNQ
2:50 AM
2
Q: How do we know neutrons have no charge?

MacThuleWe observe that protons are positively charged, and that neutrons are strongly attracted to them, much as we would expect of oppositely charged particles. We then describe that attraction as non-electromagnetic "strong force" attraction. Why posit an ersatz force as responsible, rather than descr...

 
 
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HNQ
1:15 PM
1
Q: Help on a hard integral

Gustavo SantosSo, I'm doing an extensive homework of electromagnetism and we are searching for the total electromagnetic angular momentum of the Thomson dipole. In the end, there is one integral we cannot solve. By '"we" I mean the entire class: nobody is getting how to solve it. Professor swears there are no ...

 

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