甲,乙两人分别站在铁桥的两头,铁桥长L=808米,甲用铁锤敲击铁桥的一端,乙用耳朵贴在铁桥的另一端,用秒表测出从空气中和钢铁中传来的两声敲击声的时间间隔2.2秒,则①空气中传来的敲击声
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/09 08:52:38
![甲,乙两人分别站在铁桥的两头,铁桥长L=808米,甲用铁锤敲击铁桥的一端,乙用耳朵贴在铁桥的另一端,用秒表测出从空气中和钢铁中传来的两声敲击声的时间间隔2.2秒,则①空气中传来的敲击声](/uploads/image/z/3459048-24-8.jpg?t=%E7%94%B2%2C%E4%B9%99%E4%B8%A4%E4%BA%BA%E5%88%86%E5%88%AB%E7%AB%99%E5%9C%A8%E9%93%81%E6%A1%A5%E7%9A%84%E4%B8%A4%E5%A4%B4%2C%E9%93%81%E6%A1%A5%E9%95%BFL%3D808%E7%B1%B3%2C%E7%94%B2%E7%94%A8%E9%93%81%E9%94%A4%E6%95%B2%E5%87%BB%E9%93%81%E6%A1%A5%E7%9A%84%E4%B8%80%E7%AB%AF%2C%E4%B9%99%E7%94%A8%E8%80%B3%E6%9C%B5%E8%B4%B4%E5%9C%A8%E9%93%81%E6%A1%A5%E7%9A%84%E5%8F%A6%E4%B8%80%E7%AB%AF%2C%E7%94%A8%E7%A7%92%E8%A1%A8%E6%B5%8B%E5%87%BA%E4%BB%8E%E7%A9%BA%E6%B0%94%E4%B8%AD%E5%92%8C%E9%92%A2%E9%93%81%E4%B8%AD%E4%BC%A0%E6%9D%A5%E7%9A%84%E4%B8%A4%E5%A3%B0%E6%95%B2%E5%87%BB%E5%A3%B0%E7%9A%84%E6%97%B6%E9%97%B4%E9%97%B4%E9%9A%942.2%E7%A7%92%2C%E5%88%99%E2%91%A0%E7%A9%BA%E6%B0%94%E4%B8%AD%E4%BC%A0%E6%9D%A5%E7%9A%84%E6%95%B2%E5%87%BB%E5%A3%B0)
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