送交者: conner 于 2014-04-08, 12:34:06:

回答: 多普勒效应跟方位没关系 由 whoami 于 2014-04-08, 12:24:59:

• only the velocity of the object...IF it is moving (无内容) - pgss (0 bytes) 2014-04-09, 03:22:42 (745707)
• In vacuum, or even atmosphere, not that many things can change - steven (220 bytes) 2014-04-08, 14:22:49 (745634)
  • sound or Em doesn't matter. the source is not moving what does doppler show? (无内容) - pgss (0 bytes) 2014-04-09, 12:00:12 (745733)
  • Are you sure the temperature can change the frequency ? - saas (181 bytes) 2014-04-08, 19:42:29 (745684)
    • It changes the density of water, of course, that changes the frequency. (无内容) - steven (0 bytes) 2014-04-08, 21:03:29 (745687)
      • termperature changes speed, freq remains unchanged - pgss (14 bytes) 2014-04-09, 12:01:42 (745734)
        • this is neither ideal gas, no homogenous either. - steven (237 bytes) 2014-04-09, 13:47:16 (745742)
          • doesnt matter, the key is, freq remains unchanged (无内容) - pgss (0 bytes) 2014-04-10, 19:55:02 (745835)
      • think again and avoid using of course (无内容) - 008 (0 bytes) 2014-04-08, 21:50:35 (745689)
        • Blah, blah, blah... (无内容) - steven (0 bytes) 2014-04-08, 23:18:45 (745694)
  • then how can you locate the blackbox even with constant signal? (无内容) - ASH (0 bytes) 2014-04-08, 14:57:46 (745639)
    • same as u in hide-n-seek, move around and compare change in intensity (无内容) - pgss (0 bytes) 2014-04-09, 12:02:51 (745735)
    • It is never easy. Typically, they see if they can triangulate. - steven (91 bytes) 2014-04-08, 15:10:49 (745642)

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