oblicz i wytłumacz : 10 nm * 10 ( do potęgi minus 2 ) / 2 km

[latex]1 nm = 1*10^{-9} m\1 km = 1*10^{3} m[/latex] [latex]frac{10nm*10^{-2}}{2km} = frac{10*10^{-9}m*10^{-2}}{2*10^{3}m}=5*frac{10^{-11}}{10^{3}}=5*10^{-14}[/latex]