A particle of mass 982 g and charge 677 muc moves during a, Ask an Expert

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A particle of mass 9.82 g and charge 67.7 μC moves during a uniform magnetic field, in a region where the free-fall acceleration is -9.8 m/s2 without falling. The velocity of the particle is a constant 18.3 km/s, which is perpendicular to the magnetic field. What, then, is the magnetic field?

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