Biology
Biology, 19.09.2019 22:30, babyskitt

What is measured in radiocarbon dating of organic materials?
the ratio of carbon 12 to carbon 14 in a sample
the decrease in carbon 12 in a decaying organism
the increase of carbon 12 in a living organism
the ratio of carbon 15 to carbon 12 in a sample

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Chemistry, 25.06.2019 02:30, dontcareanyonemo
Earth science 10/ chemistry 11 which two substances do geologists use in radiocarbon dating? a. carbon-12 and carbon-10 b. carbon-14 and uranium-238 c. lead-206 and carbon-14 d.carbon-14 and cardon-12 (i think that it's either b or d or someone me out! )
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Mathematics, 29.06.2019 19:30, kenzieeee96
Carbon-14 (14 6c) dating is a method for finding the age of an organic artifact from the quantity of 14 6c it contains. carbon-14, an unstable isotope of carbon, follows a well-known sequence of decay processes. the decay constants of these processes have been well established, allowing researchers to determine the age of an artifact knowing both the original amount of 14 6c and the current amount.in the lab, it is relatively easy to measure the activity of a sample and to estimate the mass of carbon in the sample. from these measurements, it is possible to find the age of the sample.part afind the age t of a sample, if the total mass of carbon in the sample is mc, the activity of the sample is a, the current ratio of the mass of 14 6c to the total mass of carbon in the atmosphere is r, and the decay constant of 14 6c is λ. assume that, at any time, 14 6c is a negligible fraction of the total mass of carbon and that the measured activity of the sample is purely due to 14 6c. also assume that the ratio of mass of 14 6c to total carbon mass in the atmosphere (the source of the carbon in the sample) is the same at present and on the day when the number of 14 6c atoms in the sample was set.express your answer in terms of the mass ma of a 14 6c atom, mc, a, r, and λ.view available hint(s)t t t
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Biology, 28.07.2019 16:40, jimeneznancy650
What is measured in the radiocarbon dating of organic materials? a. the increase of carbon-12 in a living organism b. the ratio of carbon-14 to carbon-12 in a sample c. the ratio of carbon-12 to carbon-14 in a sample d. the decrease in carbon-12 in a decaying organism
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Mathematics, 25.09.2019 02:50, kenz309
Tissues of living organisms consist primarily of organic compounds; that is, they contain carbon molecules known as proteins, carbohydrates, and fats. a healthy human body is approximately 18% carbon by weight. determine how many pounds of carbon a body weighing 200 lbs contains. how many kilograms would that be? use 0.454 kg equals 1 lb in your conversion. a. 440 lb. of carbon; 16 kg of carbon b. 36 lb. of carbon; 79 kg of carbon c. 36 lb. of carbon; 16 kg of carbon d. 440 lb. of carbon; 79 kg of carbon
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What is measured in radiocarbon dating of organic materials?
the ratio of carbon 12 to carbon...

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