Two single charged ions moving perpendicularly to a uniform magnetic field (B = 0.40 T) with speeds of 5 000 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
c
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