A Piece of Wood Is Floating at the Surface of Some

question 3

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) 1.8 cm.
• B) 0.81 cm.
• C) 3.2 cm.
• D) 1.2 cm.
• E) 0.41 cm.

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Definitions:

Mucus

A sticky, slimy substance produced by mucous membranes and glands for protection and lubrication in the body.

Airway

The path that air follows to enter and leave the lungs, including the nose, mouth, pharynx, larynx, trachea, and bronchi.

Insulin

A hormone secreted by the islets of Langerhans in the pancreas.