UC知道两道物理英文题~请求帮助!不知道怎么做
来源：百度知道 编辑：UC知道 时间：2024/06/15 09:45:08
if a gold atom is considered to be a cube with sides 2.5*10^-9m.Hom many gold atoms could stack on top of one another in gold foil with a thickness of 1.0*10^-7?
on the average 1.0kg of aluminium consist of 2.2*10^25 atoms. How many atoms would there be in a block of aluminum 10cm by 1.2cm by 15.6cm, if the deusity of aluminum is 2.7g/cm^2,or2.7*10^3kg/m^3?
on the average 1.0kg of aluminium consist of 2.2*10^25 atoms. How many atoms would there be in a block of aluminum 10cm by 1.2cm by 15.6cm, if the deusity of aluminum is 2.7g/cm^2,or2.7*10^3kg/m^3?
1.假设金原子为一个2.5*10的负9次方米的立方体，那么在一张厚为1.0*10的负7次方的金箔上，有多少个金原子能一个挨一个地面对面地堆在这张金箔上？
2.平均一公斤铝由2.2*10的25次方个原子组成。那个一块10厘米*1.2厘米*15.6厘米的铝块有多少个原子？假设铝的密度在2.7克/每平方厘米，或2.7X10的三次方公斤/每立米
我不会做，只会翻译。没办法啦。物理学得不好。对不起啦