Recent content by Blakely42

Why use the energy to reply to a thread, but not the energy to answer a question? Thanks for the homework "help".

yes

U(x) = - ∫Fdx = - (1/2)kx^2. T = (1/2)m(x')^2. E = (1/2)[m(x')^2 - kx^2]. We could write out the Lagrangian here, but the chapter this comes from (Taylor's Classical Mechanics 13.6) indicates we should probably write the Hamiltonian, H = T + U. As far as I can tell, this doesn't tell me a...

Summary:: Griffiths' Electrodynamics Text is Worthless for Teaching It seems like Griffiths just makes things up as he goes along. There's no reasoning. Sometimes he does things one way, sometimes another. Solutions are never really explained, whether I look up homework solutions online or...

i think david j griffiths book introduction to electrodynamics is pretty bad at explaining anything

contemplating the Biot-Savart Law........

I am an undergraduate physics student. Currently taking 300-level Mechanics and Electromagnetism. I am a non-traditional student in my late 20s who returned to college and chose a physics degree specifically to challenge myself in an area I've never excelled in. As a result, I struggle quite a...

This is a great explanation of the problem. It helped a ton that you stated what you did understand, since I also was struggling with the same problem, and understood it at the same level as you.

Just want to say this was an immensely helpful explanation for me. Thank you!