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Physics, 29.03.2021 21:40 paige1616

This problem concerns the electrically charged interstellar dust grain that was the subject of Problem 2.22. Its mass, which was not involved in that problem, may be taken as 10~13 gm. Suppose it is moving quite freely, with speed v<£c, in a plane perpendicular to the interstellar magnetic field which in that region has a strength of 3 X 10~6 gauss. How many years will it take to complete a circular orbit?

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