Determine how many days t will the two isotopes have the same activity

asked Feb 9, 2022 7.3k views

3 votes

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3 votes

Answer:

t = 1 ... one day

Explanation:

3 x
10^(18) *
(.5)^(t) = 6 x
10^(18) *
(.5)^(2t)

3 x
10^(18) =
(.5)^(2t) /
(.5)^(t)

6 x
10^(18)

1/2 =
.5^(t)

ln( 1/2) = t ln(
)

t = ln( .5)/ln(
)

t = 1

HM Tanbir answered Feb 14, 2022

3.7k points

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