1.如图所示,在两平行直线MN、M/N/间有匀强磁场,两电子都从MN上A点沿MN方向射入磁场,速率分别为v1和v2,射出磁场时,v1与M/N/垂直,v2与M/N/夹角为60°.则 (1) v1与v2的比值为多少? (2) 它们在磁场
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![1.如图所示,在两平行直线MN、M/N/间有匀强磁场,两电子都从MN上A点沿MN方向射入磁场,速率分别为v1和v2,射出磁场时,v1与M/N/垂直,v2与M/N/夹角为60°.则 (1) v1与v2的比值为多少? (2) 它们在磁场](/uploads/image/z/2977432-16-2.jpg?t=1.%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%2C%E5%9C%A8%E4%B8%A4%E5%B9%B3%E8%A1%8C%E7%9B%B4%E7%BA%BFMN%E3%80%81M%2FN%2F%E9%97%B4%E6%9C%89%E5%8C%80%E5%BC%BA%E7%A3%81%E5%9C%BA%2C%E4%B8%A4%E7%94%B5%E5%AD%90%E9%83%BD%E4%BB%8EMN%E4%B8%8AA%E7%82%B9%E6%B2%BFMN%E6%96%B9%E5%90%91%E5%B0%84%E5%85%A5%E7%A3%81%E5%9C%BA%2C%E9%80%9F%E7%8E%87%E5%88%86%E5%88%AB%E4%B8%BAv1%E5%92%8Cv2%2C%E5%B0%84%E5%87%BA%E7%A3%81%E5%9C%BA%E6%97%B6%2Cv1%E4%B8%8EM%2FN%2F%E5%9E%82%E7%9B%B4%2Cv2%E4%B8%8EM%2FN%2F%E5%A4%B9%E8%A7%92%E4%B8%BA60%C2%B0.%E5%88%99+%EF%BC%881%EF%BC%89+v1%E4%B8%8Ev2%E7%9A%84%E6%AF%94%E5%80%BC%E4%B8%BA%E5%A4%9A%E5%B0%91%3F+%EF%BC%882%EF%BC%89+%E5%AE%83%E4%BB%AC%E5%9C%A8%E7%A3%81%E5%9C%BA)
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