帮忙分析一道物理竞赛题首先~这道题还是很有难度的····一体积为0.001m^3的空气泡和一质量和体积与空气泡相同的钢瓶从水下2km深处放出.不考虑摩擦.气泡温度不变.空气在水面的密度为1.21k

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