150m^3 h=多少kg h
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1km/h=1m/3.6h25m/s=25*3.6=90km/h108KM/H等于多少M/s=108/3.6=30m/s4dm/min等于多少m/s4*10/60=2/3m/s
1m/s=0.001km/s1km/h=1/3.6m/s1m/s=3.6km/h
1)=0.036km/h\x0d2)=5/18m/s\x0d
3s=3000ms4h=240min15dm=1.5m78mm=0.078m120nm=0.00012m
1800m/h=1.8km/h
1m=1/1000km,1s=1/3600h,1m/s=3.6km/h.
5.1m/s=0.0051km/(h/3600)=0.0051×3600km/h=18.36km/h
km=1000mh=60min直接代入就可以了把km和h这种单位也当成可以参与运算的数(只不多是带字母的)应该为:54*1000/60=900m/s
1k/h=1000m/3600s=5/18
1km/h=1000m/3600s=5/18(m/s)≈0.2778(m/s)供参考!JSWYC
40m/s=144km/h
3.6*36=129.6m/s这是什么意思,我没看懂,但我只知道你前面几步的换算都是对的,物理书上的换算也是对的.
1km/h=5/18m/s
0.075km7.5*10∧5um7.5*10∧8600min0.5h18/3.6=5m/s30×3.6=108km/h∧表示次方(7.5×10∧8)
72km/h=72*1000m/60*60s=20m/s10m/s=36km/h
1km/h=1000m/h
10*3600/1000=36km/h
18km/h再问:再问:10.8k/h=多少m/s再问:
您好!54km/h=(18)m/s54÷3.6=18
5.2m/s=(5.2/1000)/[(1/60)/60)](km/h)=(5.2/1000)*3600(km/h)=18.72(km/h)