Even more Punnett Squares.

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If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

Aroller coaster is traveling at 13 mi./s when you purchase a hill that is 400 m long and down the hill exonerate at 4.0 m/s squared what is the final velocity of the posterior found your answer to the nearest number