1米铁板,0.75米宽,0.02厚问大约多少公斤...1米铁板,0.75米宽,0.02厚问大约多少公斤展开
1×0,75×7,85×2=0,75×15,7=11,775(公斤)
质量=密度x体积≈7.85x10^3x1x0.75x0.02=7.85x15=117.75(kg)
10X7.5X 0.2X7.8=121.68公斤
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1×0,75×7,85×2=0,75×15,7=11,775(公斤)
质量=密度x体积≈7.85x10^3x1x0.75x0.02=7.85x15=117.75(kg)
10X7.5X 0.2X7.8=121.68公斤