10−310^{-3}10−3
6.84×10−3 J6.84 \times 10^{-3} \mathrm{~J}6.84×10−3 J
68.39×10−3 J68.39 \times 10^{-3} \mathrm{~J}68.39×10−3 J
0.684J0.684J0.684J
6.84J6.84J6.84J
