A cyclotron used to accelerate an alpha particle m665 x, Ask an Expert

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A cyclotron used to accelerate an alpha particle (m=6.65 x 10-27 kg q= 3.2 X 10-19 C) has a radius of .50 m and a magnetic field of 1.8 T.

a) Ignore gravity, what is the force that acts on the alpha particle?

b) What is the momentum of the alpha particle?

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