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bio website koehler-homepage.de/Wormbo
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seen Jul 1 '12 at 13:18

May
29
comment What *is* 1 cm$ ^{ -3}$?
When trying to understand these simpler units, try taking them apart. For example $1ms^{-2}$, the unit of acceleration, means a change of velocity per time, i.e. $1ms^{-1}/s$. Velocity in turn is distance per time.
May
27
comment Angle between two vectors?
Oops, missed that.
May
26
awarded  Editor
May
26
revised Angle between two vectors?
actually I could imagine examples where the middle paragraph with "iff" would be wrong
May
26
answered Angle between two vectors?
May
26
awarded  Teacher
May
26
awarded  Supporter
May
26
answered Vectors - Find the vector $\vec{c}$ which is orthogonal to $\vec{a}$ and $\vec{b}$ and whose first component is 1
May
20
awarded  Analytical