Recent content by Lunar Manatee

I am thoroughly impressed! I had never thought of analysing it in such a way!

I am familiar with linear non-homogenous differential equations, just didn't really have the wherewithal to confirm it that way; but I am extremely glad you did it and confirmed it, gives a new insight!

yeah, I have also been arguing that for a while. but it seems *their* convention was: grams (gm), seconds (sec.) and a few other messed up units.

I am guessing they meant to say it was the algebraic (is that how you spell it?) measures. just the component of the vector along the straight-line

the attempt is visible in the image. my question is more... pedantic (?). if the initial conditions are to be taken into account, v_0=0, x_0=0 and F_0=+6, then isn't the velocity supposed to be v=+8sqrt(2)? or am I grasping at straws here. my thought is, if the force is acting in the positive...

I am hopeful sometime in the future I will study EE; it's my favourite. And I am also hopeful that sometime soon, I will read up on that. I'd jumped headfirst into electromagnetism (Electromagnetic Fields by Wangsness, is it a good book? I find it's pretty great) back before the school year...

Many thanks! And thank you for the tip, will be sure to look out for symmetry next time around; physics seems to like symmetry, hah!

Yes, I was.

I think I realised by the end of the KVL/KCL that it was symmetric all around. The currents going into the center junction are the same ones going out, the horizontal currents up top and down bottom are also equal. Rewriting the problem in LaTeX for future convenience (for other people) so...

Will get to doing that once I have the time—should have some tonight. Will rewrite them aswell since that'd probably be better.

This problem was sent to me by a good friend of mine. He said that he'd attempted it, but that he couldn't find an answer—at least, not an answer that matched the proposed answer (5/6 * R). So, I attempted it (armed with Kirchhoff's rules) and after a bit of running in circles, I got: 4/5 * R...

That's a good sign! Thanks for the confirmation! Appreciate your admiration of the LaTeX thingie I made, I tried haha.

I copied it word for word (I think. I did rewrite it in LaTeX at 3 AM out of pure frustration with the solution tbh, hah)

It's an oversimplified question, but the coil's wire itself is of neglegible resistance (or zero in this case), the coils' resistances (which you can think of as an actual device/resistor connected in series) are listed just after the question and before the drawing, suppose that R_M=R and work...

Thanks so very much, I knew my answer was correct but I needed the extra confirmation. Yeah, the teacher ended up making me have to try to prove it to them with calculus; they still disagreed. Glad you answered so quickly, much appreciated.