Recent content by Excelled

Hm, are we on the same page here? The assumptions I wanted to work from was that node 1 was →↓← (3 A enters, i_{2Ω} leaves, i_{6Ω} enters) and node 2 was ←↑→ (i_{6Ω} leaves, i_{7Ω} enters, 12 A leaves). If I'm to sum (for example) leaving currents, should it not be -3+i_{2Ω}-i_{6Ω}=0 and...

Sign errors, bane of my existence, we meet again...! Hm, I'm still getting the wrong answer. (Goodness, how can someone be this consistently wrong!) I'm trying with assumptions of →↓← (node 1) and ←↑→ (node 2), which means that node 2 is of higher potential than node 1. Node 1...

Okay, so I'm working linearly through Fundamentals of Electric Circuits and this is a practice problem. Homework Statement Obtain the node voltages in the circuit. http://i2.minus.com/iJPUlZbuy0mLa.jpg The answer is -6 volts for node 1 and -42 volts for node 2. (Which I checked in a...

Ooh! I get it now, rewriting the equation as a straight line, I wish that had come to me naturally... Thank you so much!

This is actually for a engineering course in modelling, and not in physics per se, but it seems to me to be fairly basic physics. Apologies in advance if it's out of place. Homework Statement A car with a mass of 1000 kg is held still on a slope with an inclination of 5.8 °, and then let...

Thank you so much for that great explanation, HallsofIvy! It made it clear for me. I can finally continue. :-)

Please help me! I have been sitting with this problem for god knows how long, and I just can't figure it out. I've tried re-reading the problem text, re-reading the chapter, reading alternative explanations on the web, drawing the problem on paper -- heck, I've even tried shouting at it -- but...