比如54km/h =___m/s 25m/s=__km/h

比如54km/h =___m/s 25m/s=__km/h 4km/h=___m/s 15m/s=___km/h 72km/h=___m/s 1.4m/s=___km/h 2Km/h=___m/s 36km/h=__m/s 20m/s=__km/h 10m/s=__km/h 216km/h=__m/s 30km/min=___m/s 1mm/min等于多少km/h?还有1mm/min=___m/s? 30km/s=___m/h要写出过程,谢啦 单位换算：7.5km=___m;5.85mm=___m;0.068m=___nm;16.4m=___微米；1.8h=___min;45min=___h. 换算:54km/h=?m/s, 54km/h=多少m/s 54km/h= m/s km/h=?m/s? 1m/s=多少km/h 1km/h=多少m/s 54km/h=多少m/s 10m/s=多少km/h 15m/min=多少m/s=多少km/h 单位换算：54km/h= m/s 5m/s= km/h 2m/s=( )km/h,54km/h=( )m/s 物理题要正确答案 10m/s=( )km/h 54km/h=( )m/s 单位换算：54km/h=__m/s 25m/s=__km/h 1m/s=__=__=3.6km/h 单位换算:54km/h=__m/s 25m/s=__km/h 1m/s=__=__=3.6km/h