Question: Problem 3: ( 175 ) An alpha particle, which has twice the charge and 4 times the mass of a proton, enters a region with

Problem 3:(175) An alpha particle, which has twice the charge and 4 times the mass of a proton, enters a region with a 347.3 mT magnetic field and begins to move in a 2.05 cm radius circle at a uniform speed.

Determine the speed of the alpha particle in km/s.

343 km/s

None of These

345 km/s

341 km/s

347 km/s

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