A charged particle with speed v =1 × 10° m/s enters a uniform magnetic field of B = 1.5 T. The velocity of the particle makes an angle of T/3 rad with the magnetic field. Mass and charge of the particle are m = 3.5 × 10-27 kg and q = 6.4 × 10 19 C, respectively. В Find the pitch of the helical path taken by the particle in units of Pitch millimeters. Answer: vev
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