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

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
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
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

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 is the diameter of the semicircle?...
View Full Document

This note was uploaded on 02/25/2012 for the course PHYSICS PHY 2020 taught by Professor Loats during the Spring '10 term at CSU San Bernardino.

Ask a homework question - tutors are online