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natalyakovalch1
@natalyakovalch1
August 2022
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Помогите Пожалуйста .Найдите время , за которое число атомов радия уменьшится в 4 раза.Период полураспада радия 1600 лет.
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tana20101997
Verified answer
N0/N=4=2^2
N0/N=2^n
2^2=2^n
n=t/T=2
t=2*T=2*1600=3200 лет
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Answers & Comments
Verified answer
N0/N=4=2^2N0/N=2^n
2^2=2^n
n=t/T=2
t=2*T=2*1600=3200 лет