Question

determina la masa que al descomponerse genera 81x10 a la 21 ergios

Answer 1

E=mc²

m=E/c

m=(63x10(20)ergio/(3x10(8)m/s)²)*(1x10(-7)J/ergio)*(Nm/J)*(Kgm/s²)m/N)

m=0.007Kg=7gr