Question

A cosmic ray electron moves at 6.6 x 106 m/s perpendicular to the Earth’s magnetic field...

A cosmic ray electron moves at 6.6 x 106 m/s perpendicular to the Earth’s magnetic field at an altitude where field strength is 1.37 10-5 T. What is the radius (in meters) of the circular path the electron follows? The charge of an electron is 1.6 x 10-19 C and its mass is 9.11 x 10-31m.

Your answer should be a number with two decimal places, do not include the unit.

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Answer #1

Answer is 2.74 meters

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