A Physicist Claims That She Has Found a New Particle

question 20

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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