A Physicist Claims That She Has Found a New Particle

question 18

Multiple Choice

A physicist claims that she has found a new particle with a mass 200,000 times the mass of the proton (1.67 × 10−27 kg) and a charge of 3.20 × 10−19 C. If she is correct, such a particle traveling in a circle in a uniform 5.00-T magnetic field at a velocity of 2 500 m/s will have a radius of

• A)0.261 m.
• B)0.522 m.
• C)1.04 m.
• D)3.27 m.
• E)3.13 × 1026 m.

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