物理单位换算,最后结果科学计数法800cm²= = m²15dm²= = cm²3×10的7次方mm²= = m²5×10的4次方mL= = L2.5m³= = = mL30m/s= = km/h0.09m/s= = cm/min

问题描述:

物理单位换算,最后结果科学计数法
800cm²= = m²
15dm²= = cm²
3×10的7次方mm²= = m²
5×10的4次方mL= = L
2.5m³= = = mL
30m/s= = km/h
0.09m/s= = cm/min

这么简单的东西你还拿上来问????
难道算算比打字要麻烦啊???

800cm²= 800*(0.01m)^2=8.00*10^-2 m²15dm²=15*(10cm)² = 1500 cm²3×10的7次方mm²= 3×10的7次方 *(0.001 m)²=30m²5×10的4次方mL= 5×10的4次方*(0.001L)=50 L2.5m&sup3...