One method for determining the amount of corn in early Native American diets is the stable isotope r

One method for determining the amount of corn in early Native American diets is the stable isotope r

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One method for determining the amount of corn in early Native American diets is the stable isotope ratio analysis (SIRA) technique. As corn photosynthesizes, it concentrates the isotope carbon-13, whereas most other plants concentrate carbon-12. Overreliance on corn consumption can then be correlated with certain diseases, because corn lacks the essential amino acid lysine. Archaeologists use the mass
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Unformatted text preview: spectrometer to separate the and isotopes in samples of human remains. Suppose you use a velocity selector to obtain singly ionized (missing one electron) atoms of speed 8.50 and want to bend them within a uniform magnetic field in a semicircle of diameter 25.0 for the . The measured masses of these isotopes are 1.99×10 −26 ( ) and 2.16×10 −26 ( ). What strength of magnetic field is required?...
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