Is it possible to go through a wall without damaging it?
5.What is matter made up of?
(a) How large is a unit (particle)?
Difficult questions in Science -(20) Please help me!
2006-11-14 4:49 am
回答 (2)
2006-11-14 5:50 am
✔ 最佳答案
Is it possible to go through a wall without damaging it?No, Solid cannot pass through solid.
5.What is matter made up of?
matter is made up of atoms.
(a) How large is a unit (particle)?
It is nanometer.
0.000000001 meter
2006-11-14 7:02 am
neutron: diameter=0.8 × 10^−15 m
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