Chemistry question (Awarding best answer)?
回答 (2)
2018-01-26 9:34 am
✔ 最佳答案
5.2 m/s= (5.2 m) / (1 s)
= [(5.2 m) × (1 km / 1000 m)] / [ (1 s) × (1 hr / 3600 s)]
= 18.72 km/hr
The answers: (1 km / 1000 m) and (1 hr / 3600s)
2018-01-26 9:25 am
the prefix kilo- (k-) means 1000 so 1 km = 1000 m
收錄日期: 2021-04-18 18:02:53
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20180126010715AAyKSAV