ernest21 20190810 03:09:22  So we take the fact that we know the frequency has to increase from above. Now we look at the speed. i\'m using tilt controls
slegeza 20190826 20:07:25 
Why are you spamming sketchy links on every comment you leave on this site?

 
fredluis 20190808 12:36:37  I\'m surprised no one noticed this one... As x > infinite, acceration must approach g (a > g), so choice is the only possibility. tree trimming  
joshuaprice153 20190808 06:23:04  I will must share this blog and the information i found here really has no value in money but more than it. Thanks for this nice effort which you put here in the shape of this post. security guard Orlando  
nakib 20120929 12:56:20  I solved it using Maxwell's equations. The given equation is Ampere's law in differential form. You can see the electric current term J in there. This current term is enabled by the fact that there are electric monopoles. Monopoles are allowed to exist if . Only (A) has that property. If you can remember this, this method is at least as quick as using the vector identity mentioned by Yosun.  
pam d 20110923 19:46:58  Just to be clear for people that might be foggy on vector calc, the answer is (A) for reasons already explained.  
casanovo 20081029 14:52:17  The identity didn't show up, so here it is in words:
The divergence of the curl is always zero.  
Furious 20071030 22:58:19  Left out an = 0 in that last part.  