A Glass Tube Has One End in a Dish of Mercury

question 151

Multiple Choice

A glass tube has one end in a dish of mercury and the other end closed by a stopcock.The distance from the surface of the mercury to the bottom of the stopcock is 800 mm,as indicated by the meter stick shown in the drawing below.The apparatus is at 20°C,and the mercury level in the tube is the same as that in the dish.
-Which drawing best shows the approximate level of the mercury in the tube when a vacuum pump is connected to the top of the tube,the stopcock opened,the tube is evacuated,the stopcock is closed,and the pump is removed,and the stopcock is reopened?

• A)drawing (1)
• B)drawing (2)
• C)drawing (3)
• D)drawing (4)

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Definitions:

Contingent Rewards

Incentives or rewards that are given based on the achievement of specific performance criteria.

Management By Exception

A management strategy where leaders only intervene in decision-making when performance metrics fall outside of accepted boundaries or standards, allowing for more autonomous operations.

Authentic Leader

A leadership style characterized by self-awareness, transparency, integrity, and a focus on building trust and credibility among followers.

Extrinsic Rewards

Rewards given to an individual from an external source, such as money, prizes, or recognition, serving as an incentive for achieving certain goals.