Two single charged ions moving perpendicularly to a uniform magnetic field (B = 0.40 T) with speeds of 5000 km/s follow circular paths that differ in diameter by 5.0 cm. What is the difference in the mass of these two ions?
A. 2.6 × 10?28 kg
B. 6.4 × 10?28 kg
C. 3.2 × 10?28 kg
D. 5.1 × 10?28 kg
E. 1.1 × 10?28 kg
Answer: C
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