回复：接着问下面多谱勒效应....-copy my answer here

来源: left123right 于 2013-08-09 16:30:41 [] [旧帖] [给我悄悄话] 本文已被阅读： 0 次 (249 bytes)
回答: 接着问下面多谱勒效应.... 由 nj_guy 于 2013-08-09 14:15:34
The time between two clicks with a unit of second is: T= 20.45 *1/X , where x is the speed of the train in mile per hour.

This is a simple inverse relationship question between speed and time, plus time and speed unit conversion.
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