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January 26, 2015

January 26, 2015

Posted by **Anonymous** on Tuesday, September 13, 2011 at 7:40pm.

wood which, according to its mass, would have contained 5 nanograms (5 billionths of a gram) of carbon-14 when the wood was alive. Use the fact that this radioactive carbon decays continuously at a rate of about 1.2% per century to analyze the sample.

a. How much of that carbon-14 would be expected to remain 1 century later?

2 centuries later? x centuries later?

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