木头本来就可以浮在水面上,因为木头的平均密度是0.6克每立方厘米而水是1克每立方厘米.
只要密度小于水的,就可以漂浮在水面上.
猜你喜欢
- 1x为何值时，代数式-3(x+1)2的值比代数式x+1/3−3的值大．
- 2rope
- 3there are some people here on vacation 改为一般疑问句
- 4德克士lk oc ck 什么意思
- 5There are 20 boys in the room.→ (对划线部分进行提问) _____ _______in the room?
- 6三角形ABC中,角C=60^,AB:AC=8:5,若三角形面积是10倍根号3,则此三角形的周长为?
- 70 sinx-tanx是x的三阶无穷小?
- 8It's has eight legs.it's not insect.it's black and small.what is it
- 9英语书,
- 10pick one's up 是接某人的意思吗?