问题
填空题
长颈鹿是世界上个子最高的动物，所以长颈鹿也是世界上血压最高的动物，长颈鹿血液密度约为1.05×103kg/m3，当长颈鹿心脏收缩把血液压到比心脏高3m的脑子中时，压强至少______Pa．（g取10N/kg）
答案
p=ρgh=1.05×103kg/m3×3m×10N/kg=3.15×104Pa
故答案为：3.15×104Pa．
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长颈鹿是世界上个子最高的动物，所以长颈鹿也是世界上血压最高的动物，长颈鹿血液密度约为1.05×103kg/m3，当长颈鹿心脏收缩把血液压到比心脏高3m的脑子中时，压强至少______Pa．（g取10N/kg）
p=ρgh=1.05×103kg/m3×3m×10N/kg=3.15×104Pa
故答案为：3.15×104Pa．
| 情景交际(有两项为多余项) 。 | |
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