正确答案: BCD

可能是2000 Pa 可能是4000 Pa 可能是6000 Pa

题目:一个底面积是0.01m2重是20N,质地均匀的实心正方体,其静止在一个面积是1 m2的正方形水平桌面上,那么该物体对桌面的压强 ( )

解析:BCD

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