Im including a scan of the problem and my work, please let me know if I did this right. Sorry about the sloppy handwriting.
http://img244.imageshack.us/img244/6521/strengthsproblem3rk.th.jpg
http://img241.imageshack.us/img241/8866/strengthsworkedout1rw.th.jpg
I got it, wow. that took forever. Thanks for all the help.
On another note, I was studying the problem because the teacher hinted off that he was going to quiz us on it during the next class. Well, today was quiz day and he gave us a centroid problem, yeah a freakin centroid. Haha, easy A
I took your advice and this is where I got. The book gives an answere of 17.2 and I am getting 16.3. What I am a doing wrong?
http://www.streetneeds.com/uploads/auser/statics4.jpg
I guess one of the reasons I haven't been getting much feedback is because I haven't been showing any work. Heres where I am at now, sorry about the poor handwriting:
http://www.streetneeds.com/uploads/auser/Statics2.jpg
Ok, I found the site and so far it has been helpfull..but, on one of there example problems, I don't see how they got a certain number.
http://www.mathsnet.net/asa2/2004/m15exam5.html
For step (a), could someone please explain to me how they are getting R = 117.7
I went to both of those sites and I couldn't find the information.
If someone could give me a visual process of what I have to do (equations etc), I can probably pick it up. I am a visual learner. I have to see the process done before I can repeat it.
Ive been working on this problem for a little while now and basically, I don't know where to go. I have found the friction angle of 7 degrees but I really have no idea where to go next. My book doesn't have any examples like the problem. The problem looks a lot like a basic physics problem so I...
Sorry, make it 5.
5. A pair of parallel plates, forming a capacitor, are charged. The plates are pulled apart to double the original seperation, the charges on the plates remaining the same. What is the ratio of the final energy stored to the original energy stored?
Im doing some homework problems and I cannot figure out how to do these for the life of me. Any help would be appreciated.
1. An airplane is flying through a thundercould at a height of 2000 m. If there is a charge concentration of +40 C at 3000 , within the cloud and -40 C at height 1000 m...