SAT BARRON物理第九版 有这本书的人进一下谢谢

...10 million electron volts, a relativity eect sets in; the particle's mass starts to increase noticeably woth further increases in energy. therefore, the particle takes longer to cover each successive semicircle. the frequency of the ac voltage applied to the dees must therefore change to compensate for this increase in mass. this is done in the synchrocyclotron, which uses a constant...

希望是这个= =

你可以再买一本啊

祝你成绩好

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