Задача id16482

In a tube closed at one end, a column of air is locked by a column of mercury having a length h = 19 cm. If the tube is positioned with the open end down, the length of the air column is l1 = 10 cm, and if the tube is turned over with the open end up, the length of the air column is l2 = 6 cm. Find the atmospheric pressure p.

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