Recent content by ezperkins

I am a high school senior now and I would love to pursue a career in math. I have been doing some research on the track from undergrad to grad school to tenure, and there's one thing I don't quite understand: research. I understand what research might be for life sciences or social...

I've been thinking of getting a math-related tattoo, and I decided to go ahead with it, but I'm not sure what it should be. Maybe a small Euler spiral on my wrist? My mother thinks I should get the rational version of the golden ratio, but I think that'd just be lame. Thoughts please?

I did that for another problem that asked for the respective components, why is it necessary that I so that for this problem?

Homework Statement A point charge of -6 µC is located at x = 1 m, y = -2 m. A second point charge of 12 µC is located at x = 1 m, y = 3 m. (a) Find the magnitude and direction of the electric field at x = -1 m, y = 0. (b) Calculate the magnitude and direction of the force on an...

Thank you! That was really informative. However, what do your "product lines" consist of?

haha thanks, I have a habit of making dumb mistakes like that. I'm working it a few different ways but keep winding up with: \cos \theta + i \sin \theta = i I've flown through all of the other problems on this stupid homework, but I've been working on this problem for about two...

"Use Euler's formula to evaluate the following and write your answer in rectangular form." A. (2i)5 B. (1+i)-.5 I referred to my precal book and various websites and am still clueless. I started to work out A. but I'm not sure of anything. Here's what I did: (2i)5 = 32i On the...

I am a junior in high school in AP Physics. Although not in the curriculum, I have been reading about theoretical quantum mechanics, string theory, et cetera for the past few months and I am extremely intrigued. If I do end up furthering my "physics career," where might it take me? There...

I talked to my physics teacher. He told me that after AP exams this year, he'll let me borrow a calculus book of his and that he would help me. I'm trying to get into a good summer program (Harvard, Yale, Chicago, etc.) to perhaps take calculus. I'm not really in much of a rush, I just really...

Both of the people who are in E&M this year are in the top 5 of the senior class (out of 650ish). One got accepted to MIT and one got wait-listed, they are both really smart. One took Calculus BC as a junior and is doing pretty well. One is in BC this year and is struggling. My school has...

I tried that already, on Monday and Tuesday. I guess I'm just not "physics material." I really appreciate your time though.

I have spent more than two and a half hours on this problem and have gotten nowhere. I give up. Thank you vela and collinsmark for your help.

Oh, I'm sorry. I basically treated the disks as one big disk.

so K_i = \frac{3}{4}mr^2\omega_0^2 ? and K_f = \frac{9}{50}mr^2\omega_0^2 thus \Delta K = \frac{57}{100}mr^2\omega_0^2} I feel like such an idiot. . .

vela - http://en.wikipedia.org/wiki/List_of_moments_of_inertia