quianna410
20.01.2020 •
Physics
Carbon-14 has a half-life of 5,700 years. how long will it take for 6.25% of the carbon-14 to be remaining?
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Ответ:
22,800 years
Explanation:
Half life equation:
A = A₀ (½)^(t / T)
where A is the final amount,
A₀ is the initial amount,
t is time,
and T is the half life.
0.0625 = (½)^(t / 5700)
log 0.0625 = (t / 5700) log 0.5
4 = t / 5700
t = 22,800
It takes 22,800 years.
Ответ: