Please help me!
The reactivity of Radon-220 decreases with time.
After 224 seconds, the reacti...
![subject](/tpl/images/cats/mat.png)
Mathematics, 12.11.2020 08:20 lolo8787
Please help me!
The reactivity of Radon-220 decreases with time.
After 224 seconds, the reactivity is 6.25% of its original value. Calculate the half life of Radon-220.
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Mathematics
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 16:50, hernsl0263
Which three lengths could be the lengths of the sides of a triangle? 21 cm, 7 cm, 7 cm 9 cm, 15 cm, 22 cm 13 cm, 5 cm, 18 cm 8 cm, 23 cm, 11 cm
Answers: 2
![image](/tpl/images/cats/mat.png)
![image](/tpl/images/cats/mat.png)
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:40, genyjoannerubiera
Sh what is the value of x? ox= 2.25 x = 11.25 ox= x = 22 1 (2x + 10) seo - (6x + 1) -- nie
Answers: 3
You know the right answer?
Questions in other subjects:
![Konu](/tpl/images/cats/health.png)
Health, 24.02.2021 07:10
![Konu](/tpl/images/cats/mat.png)
Mathematics, 24.02.2021 07:10
![Konu](/tpl/images/cats/mat.png)
Mathematics, 24.02.2021 07:10
![Konu](/tpl/images/cats/mat.png)
Mathematics, 24.02.2021 07:10
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mkx.png)
Arts, 24.02.2021 07:10
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/istoriya.png)
History, 24.02.2021 07:10