天气预报 > 体育 > 吹不跑的乒乓球实验原理
吹不跑的乒乓球实验原理
更新时间: 2021-04-04 18:25:03  

1、原理:在气体中,流速大的位置压强小。

2、当从漏斗口竖直向下吹气时,漏斗口下端的气体流速大,压强小,在大气压的作用下,乒乓球被压起。

3、当从漏斗口用力向上吸气时,漏斗口下端的气体流速小,压强大,气压大于大气压,把乒乓球压下去。

关键词: 乒乓球 实验 原理

吹不跑的乒乓球实验原理相关经验

天气预报

最新推荐

页面:/news/view-718033/ | 耗时:0.3042 s | 内存:2.11 MB | 查询:4 | 缓存读取:3 写入:0 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=718033 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=718033 LIMIT 0,1
select * from tbl_Articles_sphinx where id=718033 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(795650,711564,1053331,841856,823537,2387936,620794,899281,713633,925436,700081,865037,395417,3330477,473235,769948,471487,731637,777326,591553,1024192,997883,948064,81374,937316,992877,798453,540711,471126,1128784) ORDER BY field (ArticleID,795650,711564,1053331,841856,823537,2387936,620794,899281,713633,925436,700081,865037,395417,3330477,473235,769948,471487,731637,777326,591553,1024192,997883,948064,81374,937316,992877,798453,540711,471126,1128784)