A Piece of Wood Is Floating at the Surface of Some

question 9

Multiple Choice

A piece of wood is floating at the surface of some water as illustrated. The wood has a circular cross section and a height h = 3.0 cm. The density of the wood is 0.41 g/cm³. The distance y from the surface of the water to the bottom of the wood is

• A) impossible to determine because the area of the cross section is not given.
• B) 0.81 cm
• C) 3.2 cm
• D) 1.2 cm
• E) None of these is correct.

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Definitions:

Self-Fulfilling Prophecy

A prediction that directly or indirectly causes itself to become true.

Cognitive Functionality

The intellectual processes by which an individual understands, reasons, thinks, and remembers information.

Self-Fulfilling Prophecy

A belief or expectation that directly or indirectly causes itself to become true, due to positive feedback between belief and behavior.

Perceivers

Individuals who interpret and make sense of information from their environment, particularly in the context of social interactions and perceptions.