A Particle (Q = 5

question 20

Multiple Choice

A particle (q = 5.0 nC, m = 3.0 μg) moves in a region where the magnetic field has components Bx = 2.0 mT, By = 3.0 mT, and Bz = −4.0 mT. At an instant when the speed of the particle is 5.0 km/s and the direction of its velocity is 120° relative to the magnetic field, what is the magnitude of the acceleration of the particle?

• A)33 m/s²
• B)17 m/s²
• C)39 m/s²
• D)25 m/s²
• E)45 m/s²

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