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Mar
24
answered Why perpetual motion wouldn't be possible if we are so technological advanced?
Mar
24
awarded  Yearling
Mar
19
answered What is this state as a matrix?
Mar
14
answered Why planets are rotating only in one plane?
Dec
18
asked Operator vs linear transformation
Oct
23
awarded  Student
Oct
22
comment Modified Coulomb potential
$q\epsilon(1-\epsilon)r^{\epsilon - 3}$
Oct
22
awarded  Editor
Oct
22
revised Modified Coulomb potential
title
Oct
22
asked Modified Coulomb potential
Aug
23
awarded  Supporter
Jan
11
comment “Magnetic mnemonics”
Sorry, I know remembering to use the right hand rather than left is pretty arbitrary. I don't know any way around the arbitrariness. Well, one thing that may have helped me is that I have never in my life used my left hand, everything was either cross product or right-hand rule. So I won't ask "left or right" because I've never used left.
Jan
11
comment “Magnetic mnemonics”
Using right hand for (2) is non-negotiable; left hand will give the wrong answer. You can't really do (2) without referring to a hand.
Jan
11
awarded  Teacher
Jan
11
answered “Magnetic mnemonics”