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A radioactive substance with a half-life of 3.0 days has an initial activity of 2400 Bq. What is its activity after 6.0 days?
Immigration
The action of coming to live permanently in a foreign country.
Fertility Rate
The average number of children born to a woman over her lifetime within a population.
Immigration
is the process by which individuals move to a country that is not their native country, often for the purpose of permanent residence or citizenship.
Traditional Practices
Established patterns of behavior, customs, or rituals that are passed down within a culture or society, often with significant historical roots.
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