一门反坦克炮瞄准一辆坦克,开炮后经过0.6s看到炮弹在坦克上爆炸

一门反坦克炮瞄准一辆坦克,开炮后经过0.6s看到炮弹在坦克上爆炸,又经过2.1s听到爆炸声,则大炮距离坦克________m远,炮弹飞行速度是_________ m/s (已知声速340m/s)

答案

714 1190

相关题目

He was _____ by a bee when he was collecting the honey. A. scratched    B. p
He was _____ by a bee when he was collecting the honey. A. scratched    B. pricked    C. stung    D. bitten
J.J.汤姆孙1897年用阴极射线管测量了电子的比荷(电子电荷量
J.J.汤姆孙1897年用阴极射线管测量了电子的比荷(电子电荷量与质量之比),其实验原理如图18-1-8所示.电子流平行于极板射入,极板P、P′间同时存在匀强
 Do you know the man_______ saved five people in the fire?    A. who    
 Do you know the man_______ saved five people in the fire?    A. who                       B. it             C. when               D. whom
What a miracle! A low-cost Lost in Thailand《泰囧》has got the best ticket
What a miracle! A low-cost Lost in Thailand《泰囧》has got the best ticket sales(票房). It is true that Lost in Thailand has become the most popular Chinese film of all time. The ticket sa
阅读下面的文字,完成文后小题。 藏在草间 乡村是藏在草里
阅读下面的文字,完成文后小题。 藏在草间 乡村是藏在草里的。是啊,没有草的乡村是什么乡村?不管我从外回来,是在什么时候,也不管时令节气,
由解放军总装备部军事医学院研究所研制的小分子团水,解
由解放军总装备部军事医学院研究所研制的小分子团水,解决了医务人员工作时的如厕难题。新型小分子团水,具有饮用量少、渗透力强、生物利用率
如图1 ,若m∥n,∠1=105 °,则∠2=  (    )  图1     
如图1 ,若m∥n,∠1=105 °,则∠2=  (    )  图1                              图2 A、55 °    B、60 °   C、65°   D、75 °
Do you want to live another 100 years or more? Some experts say that scientific
Do you want to live another 100 years or more? Some experts say that scientific advances will one day enable humans to last tens of years beyond what is now seen as the natural limit of the human li

最新题目