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In a 1.35 T magnetic field directed vertically upward, a particle having a charge of magnitude...

In a 1.35 T magnetic field directed vertically upward, a particle having a charge of magnitude 8.60 ?C and initially moving northward at 4.68 km/s is deflected toward the east.

a)What is the sign of the charge of this particle? The charge is negative or positive?

b)Find the magnetic force on the particle.

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