来自唐经洲的问题
单位换算:0.5m=______nm1800s=______h36m/s=______km/h0.8cm/s=______km/h.
单位换算:
0.5m=______nm
1800s=______h
36m/s=______km/h
0.8cm/s=______km/h.
1回答
2020-04-07 23:08
单位换算:0.5m=______nm1800s=______h36m/s=______km/h0.8cm/s=______km/h.
单位换算:
0.5m=______nm
1800s=______h
36m/s=______km/h
0.8cm/s=______km/h.
①∵1m=109nm,∴0.5m=0.5×109nm=5×108nm;②∵1s=13600h,∴1800s=1800×13600h=0.5h;③∵1m/s=3.6km/h,∴36m/s=36×3.6km/h=129.6km/h;④0.8cm/s=0.8×1105km13600h=0.8×361000km/h=2.88×10-2km/h.故答案...