^_^nm'm^_^
完成下列单位换算:(1)8cm=______m(2)4.2nm=______m(3)1.7m=______µm(4)0.5h=______min=______s...
完成下列单位换算:
(1)8cm=______m (2)4.2nm=______m
(3)1.7m=______µm (4)0.5h=______min=______s. 展开
(1)8cm=______m (2)4.2nm=______m
(3)1.7m=______µm (4)0.5h=______min=______s. 展开
展开全部
(1)∵1cm=0.01m,∴8cm=8×0.01m=0.08m;
(2)∵1nm=10 -9 m,∴4.2nm=4.2×10 -9 m;
(3)∵1m=10 6 μm,∴1.7m=1.7×10 6 μm;
(4)∵1h=60min,∴0.5h=0.5×60min=30min;
∵1h=3600s,∴0.5h=0.5×3600s=1800s.
故答案为:(1)0.08;(2)4.2×10 -9 ;(3)1.7×10 6 ;(4)30;1800.
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