問答題
計算均方根速度Vr
知:h1=1000m,h2=1000m,h3=1000m,V1=3000m/s,V2=3500m/s,V3=4000m/s
求:Vr=?(取整數(shù))
計算均方根速度Vr
知:h1=1000m,h2=1000m,h3=1000m,V1=3000m/s,V2=3500m/s,V3=4000m/s
求:Vr=?(取整數(shù))