八年级科学上册水的浮力3最后一题第二小题的过程和答案

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八年级科学上册水的浮力3最后一题第二小题的过程和答案
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八年级科学上册水的浮力3最后一题第二小题的过程和答案
八年级科学上册水的浮力3最后一题第二小题的过程和答案

八年级科学上册水的浮力3最后一题第二小题的过程和答案
解 已知:ρ液=1×10³kg/m³ g=10N/kg
V排液=sh=0.001n²×0.1m
=0.0001m³
F浮=ρ液·g·V排
=10³kg/m³×10N/kg×0.0001m³=1N
∵漂浮
∴G=F浮=1N
G物=G-G空气=1N-0.6N=0.4N
M物=G物/g=0.4N/10N/kg
=0.04kg
=40g

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