Kinetic energy係咪即係話係一個certain time某個substance有幾多energy?
定係話需要幾多energy去整到佢move?
更新1:
does it concern time?
does it concern time?
收錄日期: 2021-04-29 17:21:35
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070524000051KK03427