The amount of meat in prehistoric diets can be determined by measuring the ratio

Question

The amount of meat in prehistoric diets can be determined by measuring the ratio of the isotopes nitrogen-15 to nitrogen-14 in bone from human remains. Carnivores concentrate,15N so this ratio tells archaeologists how much meat was consumed by ancient people. Suppose you use a velocity selector to obtain singly ionized (missing one electron) atoms of speed 8.50 km/s and want to bend them within a uniform magnetic field in a semicircle of diameter 30.0 cm for the 12C . The measured masses of these isotopes are 2.32

Explanation / Answer

The separation of the 14N and 15N isotopes is 30.0/2 cm = 15.0 cm.The separation is equal to half the diameter of the semicircle made in the uniform magnetic field.

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