A Proton with an Initial Velocity of (1

question 58

Multiple Choice

A proton with an initial velocity of (1.0x + 2.0y + 3.0z) x 10⁵ m/s enters a magnetic field of 0.50z T.Find the radius of the resulting helix.The mass of the proton is 1.67 * 10²⁷ kg.Where x,y and z are unit vectors in the x,y and z directions,respectively.

• A)4.7 mm
• B)6.3 mm
• C)7.8 mm
• D)10.mm
• E)27 mm

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