A particle (q = 2.0 ìC, m = 5.0 mg) moves in a uniform magnetic field with a velocity of magnitude 2.5 km/s and a direction that is 60° away from that of the magnetic field. The particle is observed to have an acceleration with a magnitude of 5.1 m/s2. What is the magnitude of the magnetic field?
A) 2.1 T
B) 3.0 T
C) 5.9 T
D) 7.3 T
Correct Answer:
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