一道关于声音的题目甲乙两同学分别位于一座铁桥的两端,甲同学用榔头敲一下铁桥栏杆,乙同学在另一端听到2次敲击声,声音间隔时间为0.5秒,问:桥长多少米?(声音在钢铁中的传播速度为5200
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![一道关于声音的题目甲乙两同学分别位于一座铁桥的两端,甲同学用榔头敲一下铁桥栏杆,乙同学在另一端听到2次敲击声,声音间隔时间为0.5秒,问:桥长多少米?(声音在钢铁中的传播速度为5200](/uploads/image/z/14332579-43-9.jpg?t=%E4%B8%80%E9%81%93%E5%85%B3%E4%BA%8E%E5%A3%B0%E9%9F%B3%E7%9A%84%E9%A2%98%E7%9B%AE%E7%94%B2%E4%B9%99%E4%B8%A4%E5%90%8C%E5%AD%A6%E5%88%86%E5%88%AB%E4%BD%8D%E4%BA%8E%E4%B8%80%E5%BA%A7%E9%93%81%E6%A1%A5%E7%9A%84%E4%B8%A4%E7%AB%AF%2C%E7%94%B2%E5%90%8C%E5%AD%A6%E7%94%A8%E6%A6%94%E5%A4%B4%E6%95%B2%E4%B8%80%E4%B8%8B%E9%93%81%E6%A1%A5%E6%A0%8F%E6%9D%86%2C%E4%B9%99%E5%90%8C%E5%AD%A6%E5%9C%A8%E5%8F%A6%E4%B8%80%E7%AB%AF%E5%90%AC%E5%88%B02%E6%AC%A1%E6%95%B2%E5%87%BB%E5%A3%B0%2C%E5%A3%B0%E9%9F%B3%E9%97%B4%E9%9A%94%E6%97%B6%E9%97%B4%E4%B8%BA0.5%E7%A7%92%2C%E9%97%AE%EF%BC%9A%E6%A1%A5%E9%95%BF%E5%A4%9A%E5%B0%91%E7%B1%B3%3F%EF%BC%88%E5%A3%B0%E9%9F%B3%E5%9C%A8%E9%92%A2%E9%93%81%E4%B8%AD%E7%9A%84%E4%BC%A0%E6%92%AD%E9%80%9F%E5%BA%A6%E4%B8%BA5200)
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