When you drop a rock into a well,you hear the splash 1.7 seconds later.How deep is the well?
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/08 07:42:54
When you drop a rock into a well,you hear the splash 1.7 seconds later.How deep is the well?
When you drop a rock into a well,you hear the splash 1.7 seconds later.
How deep is the well?
When you drop a rock into a well,you hear the splash 1.7 seconds later.How deep is the well?
题目翻译成中文即“向井中投一石块,1.7秒后听到石块落水声,则井有多深?”
可知重力加速度g 下落时间t=1.7秒 设井深为h
h=(g×t×t)/2 即二分之一g乘t平方
带入数值
若g取10 井深 h=(10×1.7×1.7)/2=14.45m
若g取9.8 井深h =(9.8×1.7×1.7)/2 =14.161m
When you drop a rock into a well,you hear the splash 1.7 seconds later.How deep is the well?
Rock It Till You Drop It 歌词
Brother.you lift a rock only to drop it on your own toes 怎么翻译?
-----Do ____me when you come to America next time .-----Sure,I will.A.drop B.drop in C.drop in at D.drop in on
When you are free,please for tea .OK.I will.A.drop by B.drop back C.drop off D.drop down 理由说下When you are free,please______ for tea .
rock you
My eyes drop tear when I start thinking of you
What happens when you drop them both from higher up?
If you were a tear drop
英文翻译 学霸快来when i see you, i would hit a rock at you and let you feel how much it hurts to miss u.
when it is( ).it is a water drop again.
什么rock you,rock you是哪首歌了?
What do you drop when you need it and take back when you do not need.快呀,需要挖
翻译You’ve got a drop of fever.
A glass _____________ it.(drop/you/breaks/if)
I will drop you a line later tonight
we well rock you
we will rock you