Physics
posted by Mary .
An electron moves at a speed of 5.4 106 m/s perpendicular to a constant magnetic field. The path is a circle of radius 1.0 103 m.
(a) What is the magnitude of the field?
T
(b) Find the magnitude of the electron's acceleration.
m/s2

force= Me*v^2/r= qBv
solve for r