An electron moves in a circular path perpendicular to a magnetic field of magnitude 0.260 T. If the kinetic energy of the electron is 4.30 ✕ 10−19 J, find the speed of the electron and the radius of the circular path. (a) the speed of the electron ______ m/s (b) the radius of the circular path  ______μm

University Physics Volume 2
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ISBN:9781938168161
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Chapter11: Magnetic Forces And Fields
Section: Chapter Questions
Problem 31P: An alpha-particle ( m=6.641027kg , q=3.21019C ) travels in a circular path of radius 25 cm in a...
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An electron moves in a circular path perpendicular to a magnetic field of magnitude 0.260 T. If the kinetic energy of the electron is 4.30 ✕ 10−19 J, find the speed of the electron and the radius of the circular path.

(a) the speed of the electron
______ m/s

(b) the radius of the circular path
 ______μm
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