初二物理,单位换算
发布网友
发布时间:2022-05-07 00:30
我来回答
共3个回答
热心网友
时间:2023-10-09 14:27
答案见图片
热心网友
时间:2023-10-09 14:28
(1)2min=2/60h=1/30h
(2)2h=2*60min=120min
2h=2*3600s=7200s
(3)30min=30/60h=0.5h
30min=30*60s=1800s
(4)45min=45/60h=0.75h
(5)120s=120/60min=2min
120s=120/3600h=1/30h
(6)1800s=1800/3600h=0.5h
我实在想不出。。这种题还要怎么写过程?。
热心网友
时间:2023-10-09 14:28
二点三乘以十的负六次方
能给个采纳吗?谢谢哦