Charcoal samples from Stonehenge in England were burned in the presence of oxygen with the resulting carbon dioxide gas bubbled into a solution of calcium hydroxide.  The resulting precipitate of calcium carbonate was filtered and dried resulting in radioactivity measured as 0.0150 disintegrations per second from carbon-14 decay.  Living organisms have a decay rate of 15.3 disintegrations per minute with a half-life of carbon-14 of 5715 years.  Calculate the age of the original charcoal sample. Group of answer choices 23,400 years 11,200 years 4,380 years 57,100 years

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Charcoal samples from Stonehenge in England were burned in the presence of oxygen with the resulting carbon dioxide gas bubbled into a solution of calcium hydroxide.  The resulting precipitate of calcium carbonate was filtered and dried resulting in radioactivity measured as 0.0150 disintegrations per second from carbon-14 decay.  Living organisms have a decay rate of 15.3 disintegrations per minute with a half-life of carbon-14 of 5715 years.  Calculate the age of the original charcoal sample.
Group of answer choices
23,400 years
11,200 years
4,380 years
57,100 years
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