A U-tube is partly filled with mercury and an unknown liquid is poured into it through the other arm. The surface of the separation of the liquids is at the 6.35 cm mark, the 0 marks being at the tube’s bottom. The free surface of mercury is at 8.46 cm while that of the unknown liquid at 28.24 cm. If the density of mercury is 13.6 g/cc, calculate the density of the unknown liquid.

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Storm Sewers and Detention

The storm drains system transports rainwater or stormwater and other runoff from roads, parking lots, and roof downpipes directly to nearby creeks, rivers, or the sea without any treatment.