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(MAT105 -Intro 2 Cllge Math) Real Wrld App #29 -Wk 10

# (MAT105 -Intro 2 Cllge Math) Real Wrld App #29 -Wk 10 - I n...

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In real world application #29, you learn to solve equations using logarithms in reference to radiocarbon dating. First, radiocarbon dating is used to identify the age of the remains of …well, I guess whatever used to be alive, but in this example we are talking about long extinct animals. OK, inside an atom are protons and neutrons. The # of protons determines the element (remember the periodic table…its ordered according to the # of protons…). The # of neutrons tell you the version of the element. An atom with 6 protons is carbon. If the carbon atom has 8 neutrons it is known as carbon-14 (8+6 maybe?? -not very original…). Since the # of protons & neutrons are not equal, it is unstable, and as a result it radiates energy and mass that causes its own decay. All living things ingest the radioactive carbon-14 from breathing. You die, no more breathing, and no more carbon-14. The amount left in the body slowly decays, so when an archaeologist discovers fossils, he can find out how old it is by figuring the amount of carbon-14 left !

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