Leonida

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 Mar10 awarded Yearling Nov26 revised Conservation of ang. momentum for paths reaching a rotation axis rewrote some of the latex Nov26 suggested suggested edit on Conservation of ang. momentum for paths reaching a rotation axis Nov26 comment Direction of friction when a car turns similar question physics.stackexchange.com/questions/79852/… Nov26 revised Use kirchhoff's second law to deduce the resistance R of the resistor added pictured and used latex Nov26 suggested suggested edit on Use kirchhoff's second law to deduce the resistance R of the resistor Nov26 comment Some strange transformation What strange transformations? Nov26 comment Some strange transformation You probably know this formula $tr(A)=ln[Det(e^{A})]$. If there exists a matrix $B$, invertible, such that $A=ln(B)$ the following is true $tr[ln(B)]=ln[det(B)]$. Nov26 revised What is the significance of electron spin quantum number? added 145 characters in body Nov26 answered What is the significance of electron spin quantum number? Nov24 comment The Weyl tensor and gravitational waves See this article on Weyl tensor and gravitational waves arxiv.org/abs/1309.2768 Nov24 comment Speed of light, lasers and mass I'm glad you found my answer helpful. Nov24 revised C, T, P transformation mistakes in Peskin&Schroeder's QFT''? deleted 1 characters in body Nov24 answered C, T, P transformation mistakes in Peskin&Schroeder's QFT''? Nov24 comment Help with inductance and a moving (rolling) rail problem It has been a while since I've done this kind of problems, hope I get it right. The current that passes through the circuit is $I=V/R$. The force acting on the cylinder will be $F=VLB/R$. Now, from Newtons 2nd law you get the acceleration as $a=VLB/(mR)$, and the speed will be $v=\frac{VLB}{mR}t$. Or have I read the problem wrong? Nov24 revised Thermodynamics and wall insulation rewrote it with latex Nov24 suggested suggested edit on Thermodynamics and wall insulation Nov23 answered Speed of light, lasers and mass Nov23 awarded Organizer Nov22 comment Question about Majorana fermions The short answer is no. A relation like that does not exist. But, there are some "connections" for the masses in the See-Saw mechanism. Not knowing much about this mechanism, here are some good (I hope) articles :ias.ac.in/pramana/v72/p217/fulltext.pdf kvi.nl/~loehner/saf_seminar/2010/NeutrinoMassAndNewPhysics.pdf