Statement of a problem № 41342


The magnetic field of the Earth at a certain location is directed vertically downward and has a magnitude of 50.0 +T. A proton is moving horizontally toward the west in this field with a speed of 6.20 % 106 m/s. (a) What is the direction and magnitude of the magnetic force the field exerts on this charge? (b) What is the radius of the circular arc followed by this proton?

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