Recent content by Durin

I atually ended up figuring it out, but it was really crazily easy. Basically I was supposed to use the electric field from a parallel-plate capacitor and substitute in ε for ε0 then integrate to find the voltage.

Homework Statement 1. A parallel plate capacitor, with plates of area A, and spacing d, is filled with a non-uniform dielectric, with a permitivity that varies as ε = ε0 + ax where a is a constant, and x is the distance from one plate Homework Equations C = Q/V I'm...

h is the height it exits at. It's solved for using the radius. d is the distance it travels along the x-direction. What I think is wrong is the angle at the top left of the first diagram. According to the correct answer, it appears that the angle the two radii make at the enter and exit...

Homework Statement Okay, so the problem is I need to find the radius of curvature for a proton moving through a uniform magnetic field with initial velocity v for some distance d and exiting at angle θ. I was able to get the correct answer; however, I think the apparent assumption made by the...

AP exams are right around the corner and I was looking at picking up a review book to begin reviewing Mechanics and EM topics. I'm curious which one to buy. From what research I've done it seems that Pelcovits' "How to Prepare for AP Physics C" is the most rigorous book available and is...

I'm kind of shaky on a lot of high school Geometry that is going more or less unused in my Physics and Calculus classes and I was wondering if there was a good book or place for me to go back to my "roots" and review the fundamentals?

Okay thank you for the help. It all makes sense now.

Thanks that really helped the picture in my head. So my question. I suppose I should ask now is what if it's placed along these lines with an intial velocity of zero would it still not follow the lines like a trajectory? And, mensa, it's in the second lecture at which point I'm not sure. I...

Hi. I'm a student in AP Physics this year and we started the E&M portion this week and we learned about electric fields. I was watching MIT's OpenCourseWare in order to get more comfortable with the concepts. The lecturer said that charges do not follow electric field lines because of the...

Thank you so much!

Homework Statement If 25g of water at a temperature of 10 degrees Celsius is mixed with 40 grams of water at 80 degrees Celsius what is the final temperature of the mixture? Homework Equations Qlost + Qgained = 0 Q=mcΔt The Attempt at a Solution Attempt 2: 0.025(4186)(x-10) + (0.04)(4186)(x-40)...