125CM,= M= MM= NM 0.25KM= M= 微米1.25H= MIN9000S= MIN= H

分类: 作业答案 • 2021-12-19 15:32:13

问题描述：

125CM,= M= MM= NM
0.25KM= M= 微米
1.25H= MIN
9000S= MIN= H

答

125CM,=1.25 M=1.25*10^3 MM=1.25*10^9 NM
0.25KM=250 M=2.5*10^8 微米
1.25H= 75 MIN
9000S= 150 MIN=2.5 H

答

[1]125CM=1.25M=1250MM =1250000000NM
[2] 0.25KM=250M=250000000 微米 ;
[3]1.25*60MIN=75MIN;
[4]9000S/60S=150 MIN/60MIN=2.5H