20 + 1 X 12 + 6 - 1 + 12
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Solved A proton (+1.6 x 10-19 C) moves 20 cm on a path in | Chegg.com
Foguete 10 x 1 Solved a proton (+1.6 x 10-19 c) moves 20 cm on a path in Proton transcribed