Find the separation of two isotopes after passing through a velocity selector and a magnetic field.?

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 (Figure 1) to... show more 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 (Figure 1) to obtain singly ionized (missing one electron) atoms of speed 513km/s and want to bend them within a uniform magnetic field of 0.510T. The measured masses of these isotopes are 2.33×10−26kg (14N) and 2.46×10−26kg (15N). Find the separation of the 14N and 15N isotopes at the detector.
Figure: https://session.masteringphysics.com/problemAsset/2037416/5/Young.Ch27.Pr33.jpg
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