一次爆破中,用一条96cm长的引火线,使装在钻孔里一炸药爆炸.引火线的燃烧速度为0.8cm/s.点火者点着引火线后,以3m/s的速度跑开,问他能否在爆炸前跑到距离爆炸点100m远的安全区中?你从烟台家
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/15 03:05:42
![一次爆破中,用一条96cm长的引火线,使装在钻孔里一炸药爆炸.引火线的燃烧速度为0.8cm/s.点火者点着引火线后,以3m/s的速度跑开,问他能否在爆炸前跑到距离爆炸点100m远的安全区中?你从烟台家](/uploads/image/z/5318456-32-6.jpg?t=%E4%B8%80%E6%AC%A1%E7%88%86%E7%A0%B4%E4%B8%AD%2C%E7%94%A8%E4%B8%80%E6%9D%A196cm%E9%95%BF%E7%9A%84%E5%BC%95%E7%81%AB%E7%BA%BF%2C%E4%BD%BF%E8%A3%85%E5%9C%A8%E9%92%BB%E5%AD%94%E9%87%8C%E4%B8%80%E7%82%B8%E8%8D%AF%E7%88%86%E7%82%B8.%E5%BC%95%E7%81%AB%E7%BA%BF%E7%9A%84%E7%87%83%E7%83%A7%E9%80%9F%E5%BA%A6%E4%B8%BA0.8cm%2Fs.%E7%82%B9%E7%81%AB%E8%80%85%E7%82%B9%E7%9D%80%E5%BC%95%E7%81%AB%E7%BA%BF%E5%90%8E%2C%E4%BB%A53m%2Fs%E7%9A%84%E9%80%9F%E5%BA%A6%E8%B7%91%E5%BC%80%2C%E9%97%AE%E4%BB%96%E8%83%BD%E5%90%A6%E5%9C%A8%E7%88%86%E7%82%B8%E5%89%8D%E8%B7%91%E5%88%B0%E8%B7%9D%E7%A6%BB%E7%88%86%E7%82%B8%E7%82%B9100m%E8%BF%9C%E7%9A%84%E5%AE%89%E5%85%A8%E5%8C%BA%E4%B8%AD%3F%E4%BD%A0%E4%BB%8E%E7%83%9F%E5%8F%B0%E5%AE%B6)
xVKS"W+.}P ubmٚ0lR"e.k(" &Nۼr{#[WkЫR
#d0d3?iج;"˦[b4w 5x;]TzX|,s:&?Xz@o]"7,\n%ذoiA=.I/h٢Ͽyv<-W{<5]5a_,9Di=WL4bJJXJ5&++JYfM݇Е