Recent content by alacey11

I had no idea they were different units! I thought the S was a variable... Thank you for clearing that up for me - I've solved the question now, thanks. :smile:

After you have added together R7 and R6, you should have 3 resistors in parallel: 1. R1 2. R6 + R7 3. The resistor you got from merging R2, R3, R4 and R5 Use the parallel resistor formula on all three to get R Total When I used to have this problem, I found that redrawing the circuit makes it...

You approached it the same way I did :) I thought that way would work, but I kept ending up with i = 1.35 A

Homework Statement Obtain the values of i and v in the circuit below: http://img33.imageshack.us/img33/7538/newpicturenl.png Answers: i = 6 Amps, v = 3 Volts Homework Equations Ohm's Law, Kirchhoff's Current Law & Kirchhoff's Voltage Law The Attempt at a Solution I have spent the last 90...

I have solved it now... I was familiar with the integration by parts, but would not have thought to use it twice - I had used it once and when I saw the new integral with cos() I assumed I had done it wrong. Thanks a lot!

I think I'm doing it wrong, because I just got two integrals that were just as hard: int (e^8x * cos(x) dx) + int ((e^8)/8 * sin(x) dx)

Homework Statement int e^8x * sin(x) dx Homework Equations I can integrate each of them separately - it's the multiplication that confuses me. Is there some sort of product rule for integration? I'm not sure where to start, I just need a push in the right direction. The Attempt...

Thanks for your help! The question made sense once it was explained, was simpler than I thought, thanks.

Homework Statement 5 lamps are connected in series (one after the other in a circle) across the terminals of an energy source. Each lamp has a voltage drop across its terminals that is double the value of the one to the left of it. Which lamp will glow the brightest? Homework Equations...