Recent content by OtherWindow

Why did you chose 45 degrees as the angle?

That's reassuring to hear. This is actually from an online homework system done through the University of Texas (this is just for a high school class though). I do recall there being errors in the past, though. I'll talk to my teacher (he has access to the solutions) on Monday,. Thanks for...

Here is what I have gotten: My answer is boxed, it was cut off a bit by the scanner, it is in microAmperes. I know 448.1267 is not the answer. I suppose if this is still wrong I will have to show how I'm plugging in the numbers. (Wolfram|alpha makes typing in the matrices kind of a pain...

Thank you for your help. In an earlier attempt I had included negative signs only to remove them. I see why you would need them. So, I'll use the equation for the square: V = B' * L2 = I1 * 3Lλ + I3 * Lλ and a fixed version of the left rectangle V = B' * .5 * L2 = I2 * 2Lλ - I3 * Lλ...

Homework Statement I am using these variables: L for the square length - so the rectangle on the left is L/2 by L B' = rate at which field increases λ = Resistance/Length I1 = Current on the right (so the top/right/bottom of square) - goes counterclockwise I2 = Current on the left (so the...

I'm not familiar with those, but I know they don't appear on any of the notes I have, nor are they in the syllabus. Anywho, equivalent resistance is 25/3. (1 / (1/10 + 1/5) ) + 5 = 8.333... V = IR I = V/R I get that total current (at the battery) = 35 / 8.3333... Itotal = 4.2 Amperes At...

Homework Statement Homework Equations V = IR I = V/R (1 - e^(-t / τ)) τ = L / R The Attempt at a Solution I'm so thrown off by these two problems. Every example I have done has nothing in parallel and it is simple, but my homework question involves having to do a...

Okay: I finally arrived at the right answer by just using indefinite integrals and including a constant of integration that I solved for. That got me v(t) = v_0 * e ^ (-bt/m) Then I did the same thing to get position from velocity, and used indefinite integrals again... I got position = m*v_0 /...

Homework Statement See problem here: http://i184.photobucket.com/albums/x153/spl10246/problem.png Solution: http://i184.photobucket.com/albums/x153/spl10246/solution1.png http://i184.photobucket.com/albums/x153/spl10246/solution2.png Homework Equations p = m * v K = .5 * m *...