Recent content by xXOfNiRXx

Got it, thanks for your help. :)

Thank you for the feedback. I will correct my errors momentarily. Can you explain why gammax'y' is not zero and why gammaxy is zero?

[a]1. Homework Statement [/b] I thought it would be easier to post a picture since this way the drawing can be seen. I'm having a hard time deciding what angles to use with the relevant equations, see below. Homework Equations I know that: Ex' =...

So, I finally got it to work. However, I changed the code around many-a-time until it finally worked. Curiously enough, the same code doesn't give me the same answer every time! Weird. Here is he code that code: C1 1 0 10e-9F IC = 90V R1 1 0 2.0e3ohm L1 1 0 250e-3H IC= -30e-3A .tran 5e-6...

Thanks for your reply, appreciate the help. It's an interesting problem. What you said makes sense though. Setting IC = 90V for the capacitor does nothing. Wow, I'm at a loss; I have literally tried everything that I can think of.

Hello everybody. I have an over-damped RLC parallel circuit. Using techniques taught, I solved for v(t) = 70e^(-10,000t)+20e^(-40,000t) V for t> zero. This indicates that my initial voltage is 90v. Using MATLAB (Part of the assignment) I verified this. I also found that Current as a function of...

Just a quick question. I'm having problems with factorials. For example, how do you simplify 2n+2!? Is it 2n!*2n+1!? Thanks everybody!

How do you go about finding the arctangent of an unfamiliar number. Example, arctan (-2)? I think it's in the direction of half-angles and double angels, but how do I get the angle to start with the formulas in the first place? Thanks in advance!

Oooooooo! It all makes sense! Got it! Thanks so much! Really appreciate it. The trick was seeing that the d's would cancel! Thanks!

Tried working it out, but I'm not seeing it here. I see that by manipulation you get t=d/v at which point you plug in the speed that I am given. Can you explain a bit more. I'm quite confused here.

I see that total distance is 2, or 2d. I am having trouble seeing how to get the time.

Homework Statement A person walks from point a to point b at a speed of 5 m/s. Then she turns around and walks from point b to point a at a speed of 3 m/s. What is her average speed? Homework Equations Average speed is equal to d/ change in t. The Attempt at a Solution So I know...

Tension on a rope--no idea how to even start. Homework Statement A rope is used to pull a 10kg block across the floor with an acceleration of 3m/s^2. If the frictional force on the black is 50 N, what is the tension on the rope? M=50kg A= 3m/s^2 Frictional force is 50 N. Homework...