1.把兵乓球放在玻璃漏斗里,对着漏斗嘴使劲向下吹气,可见兵乓球只是在漏斗里跳动,并不会掉下来.这是因为气体流速大,压强就小,可为什么对着一张平铺着的白纸吹气,白纸却不会飞起来呢?吹
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/12 12:53:43
![1.把兵乓球放在玻璃漏斗里,对着漏斗嘴使劲向下吹气,可见兵乓球只是在漏斗里跳动,并不会掉下来.这是因为气体流速大,压强就小,可为什么对着一张平铺着的白纸吹气,白纸却不会飞起来呢?吹](/uploads/image/z/5003788-4-8.jpg?t=1.%E6%8A%8A%E5%85%B5%E4%B9%93%E7%90%83%E6%94%BE%E5%9C%A8%E7%8E%BB%E7%92%83%E6%BC%8F%E6%96%97%E9%87%8C%2C%E5%AF%B9%E7%9D%80%E6%BC%8F%E6%96%97%E5%98%B4%E4%BD%BF%E5%8A%B2%E5%90%91%E4%B8%8B%E5%90%B9%E6%B0%94%2C%E5%8F%AF%E8%A7%81%E5%85%B5%E4%B9%93%E7%90%83%E5%8F%AA%E6%98%AF%E5%9C%A8%E6%BC%8F%E6%96%97%E9%87%8C%E8%B7%B3%E5%8A%A8%2C%E5%B9%B6%E4%B8%8D%E4%BC%9A%E6%8E%89%E4%B8%8B%E6%9D%A5.%E8%BF%99%E6%98%AF%E5%9B%A0%E4%B8%BA%E6%B0%94%E4%BD%93%E6%B5%81%E9%80%9F%E5%A4%A7%2C%E5%8E%8B%E5%BC%BA%E5%B0%B1%E5%B0%8F%2C%E5%8F%AF%E4%B8%BA%E4%BB%80%E4%B9%88%E5%AF%B9%E7%9D%80%E4%B8%80%E5%BC%A0%E5%B9%B3%E9%93%BA%E7%9D%80%E7%9A%84%E7%99%BD%E7%BA%B8%E5%90%B9%E6%B0%94%2C%E7%99%BD%E7%BA%B8%E5%8D%B4%E4%B8%8D%E4%BC%9A%E9%A3%9E%E8%B5%B7%E6%9D%A5%E5%91%A2%3F%E5%90%B9)
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