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A radioactive material has a half life of 1550 years. Find the time during which a given amount of this material is reduced to one forth.

I am really not sure how to do this since we have not covered it in class yet. But, a formula that I have found involves find the k value (whatever that is) of a 1550 half life.

k=ln2/1550 = 6.65

Any guidance please?

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# Homework Help: Half life problem

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