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August 30, 2016

Homework Help: physics

Posted by Anonymous on Sunday, April 6, 2014 at 10:21pm.

A cosmic-ray proton in interstellar space has an energy of 19.5 MeV and executes a circular orbit having a radius equal to that of Mars' orbit around the Sun (2.28 1011 m). What is the magnetic field in that region of space?

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