The U-Tube in the Figure Is Sealed at Both Ends $\times$

question 47

Multiple Choice

The U-tube in the figure is sealed at both ends.It contains a gas in A,another gas in B,and mercury in C.The heights of the mercury in the two arms are as shown.The density of mercury is 13.6 g/cm³.If the pressure in A is 1 $\times$ 10⁴ dyn/cm²,the pressure in B is

• A)1 \(\times\) 10⁴ dyn/cm²
• B)2 \(\times\) 10⁴ dyn/cm²
• C)3 \(\times\) 10⁴ dyn/cm²
• D)4 \(\times\) 10⁴ dyn/cm²
• E)5 \(\times\) 10⁴ dyn/cm²

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Definitions:

Picked Up

A phrase indicating that something has been lifted off a surface or that interest, intensity, or pace has increased.

Contaminant Transport

The movement of chemical substances or pollutants through the environment, affecting air, water, and soil quality.

Vegetated Zone

Areas covered with plants including grasses, trees, and shrubs, often key in preventing erosion and providing habitat.

Adsorption

The process by which atoms, ions, or molecules from a substance (it could be a gas, liquid, or dissolved solid) adhere to a surface of another substance.