单位换算:12nm=___m 2h15min=___s108km/h=___m/s
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发布时间:2023-01-11 09:23
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热心网友
时间:2023-04-22 09:36
①∵1nm=10
-9m,∴12nm=12×10
-9m=1.2×10
-8m;
②∵1h=3600s,1min=60s,∴2h15min=2×3600s+15×60s=8100s;
③∵1km/h=
m/s,∴108km/h=108×
m/s=30m/s.
故答案为:1.2×10
-8;8100;30.