A Proton Moves Around a Circular Path (Radius = 2

question 48

Multiple Choice

A proton moves around a circular path (radius = 2.0 mm) in a uniform 0.25-T magnetic field. What total distance does this proton travel during a 1.0-s time interval? (m = 1.67 × 10−²⁷ kg, q = 1.6 × 10−¹⁹ C)

• A) 82 km
• B) 59 km
• C) 71 km
• D) 48 km
• E) 7.5 km

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