Е=40,5*10^16 Дж m=?
E=m*c² m=E/c²=40.5*10^16/(9*10^16)=4.5 кг
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Е=40,5*10^16 Дж m=?
E=m*c² m=E/c²=40.5*10^16/(9*10^16)=4.5 кг
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