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题:用一种厚为8厘米、密度为2.4×10~3千克/米~3的长方体砖砌墙.砌墙使用的水泥砂浆的密度为2.2×10~3千克/米~3,砖缝间水泥砂浆的厚度为1厘米,为了保证安全,墙体对墙基的压强不得超过4.9×10~5帕,那么该墙的高度不得超过多少米?
Problem: Use a cuboid brick wall with a thickness of 8 cm and a density of 2.4 x 10 ~ 3 kg/m~3. The density of the cement mortar used in the masonry wall is 2.2 x 10 ~ 3 kg/m~3. The thickness of the cement mortar is 1 cm. To ensure safety, the wall pressure on the wall base must not exceed 4.9 × 10 ~ 5 Pa. Then the height of the wall must not exceed the number of meters?