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水银柱水平放置时气压相等 D.可能相等也可能偏小
一道高一气压有关的物理题 设L1=L2=L0,P1=P2=P0=76CmHgL1'+L2'=2L0…(1)L2'=2L1'…(2)L1'=2L03 L2'=4L03根据玻意耳定律:P0L0S=P1L1'S…(3)P0L0S=P2L2'S…(...
一道高一气压有关的物理题 设L1=L2=L0,P1=P2=P0=76CmHgL1'+L2'=2L0…(1)L2'=2L1'…(2)L1'=2L03 L2'=4L03根据玻意耳定律:P0L0S=P1L1'S…(3)P0L0S=P2L2'S…(...