Magnetic force and radius from magnetic field

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adambahh
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A magnetic field of 0.0200 T (up) is created in a region

a)find initial magnetic force on an electron initially moving at 5.00x10^6 m/s (N) in the field

b) what is the radius of the circular path

Equations used:
a) F=qvB
b) F= kq/r^2

Thanks in advance
 

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