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December 20, 2014

Homework Help: physics

Posted by Trace on Tuesday, November 23, 2010 at 9:58pm.

A uniform magnetic field points North; its magnitude is 1.5 T. A proton with kinetic energy 8.0x1013 J (5.0 MeV) is moving vertically downward in this field. What is the magnetic force acting on it?

I have no idea where to start with this question, can I just have the formula's I would need to work it out?

Thanks:)

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