A particle (mass = 2.0 mg, charge = ?6.0 ?C) moves in the positive direction along the x axis with a velocity of 3.0 km/s. It enters a magnetic field of 
mT. What is the acceleration of the particle?
A.
m/s2B.
m/s2C.
m/s2D.
m/s2E.
m/s2Answer: A
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