PLEASE READ THIS BEFORE POSTING YOUR QUESTION: While I am glad to offer HELP with problems, I refuse to SOLVE problems. There is a difference. Please do not just copy a question from a texbook or assignment. I WILL REJECT IT. I will only accept questions, if in addition to the statement of the problem, you describe in detail what you have tried so far in order to solve it, and what exactly is the problem you are encountering. In other words where/why are you stuck? I can answer general physics questions up to the level of first or second year undergraduate courses. Topics I am familiar with include: classical mechanics (kinematics, dynamics, etc.), electricity and magnetism, optics, thermodynamics, and special relativity. I may not answer questions at an advanced undergraduate or graduate levels. Also please do not expect help with algebra or arithmetic (performing numerical calculations).
I have been a private physics tutor for about eight years. I also have six years of experience a teaching assistant (for both theory and lab) and occasional substitute lecturer in Physics.
B.S. in Chemical Engineering M.S. in Chemical Physics PhD candidate (5th year) in Physics.
| User | Date | K | C | T | P | Comments |
|---|---|---|---|---|---|---|
| shameem | 11/24/09 | 10 | 10 | 10 | 10 | |
| Amithabh | 11/02/09 | 10 | 10 | 10 | 10 | Awesome! Thank you very much Sir for ..... |
| Marc | 11/01/09 | 10 | 10 | 10 | 10 | THanks for such a quick reply, I ..... |
| Ebudo | 10/25/09 | 10 | 10 | 10 | 10 | thanks so much...ur awesome...wish to ..... |
| Toniann | 10/20/09 | 9 | 10 | 10 | 10 | Thanks! |
Hi Bruce, Wow, looks like you already know quite a bit about this. On a personal level I find this stuff very interesting BTW, although I'm not much of an expert to be honest. OK so you want to
Hello Shameem I think I understand what you mean. The first thing that needs to be clarified is that the potential energy does not come from the Earth (or equivalently, the magnet) it comes from the
Hello Shameem, Thanks for your reply. I think I understand your question now. As you mentioned yourself, while the earth orbits the sun, the gravitational potential energy may decrease while it
Hello Sanaz, Sorry for not getting back to you, I've been very busy lately. The truth is, finding the frequency is the hardest part because it involves solving a second-order differential equation
Hello Shameem, Good questions. Although I find question 2 a bit confusing. First about question 1. I understand why you are confused. If F=ma and the body is at rest why doesn't a=0? The
Answers by Expert:

©2009 About.com, a part of The New York Times Company. All rights reserved.