A Cylindrical Container for Storing Radioactive Waste Is to Be

question 172

Multiple Choice

A cylindrical container for storing radioactive waste is to be constructed from lead and have a thickness of 6 in. (see the figure) . If the volume of the outside cylinder is to be , find the radius and the height of the inside cylinder that will result in a container of maximum storage capacity. Hint: Show that the storage capacity (inside volume) is given by

• A) r = ft.; h = 2 ft.
• B) r = ft.; h = 3 ft.
• C) r = ft.; h = 2 ft.
• D) r = ft.; h = 3 ft.

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Definitions:

Parasympathetic

Refers to the part of the autonomic nervous system that conserves energy as it slows the heart rate, increases intestinal and gland activity, and relaxes sphincter muscles in the gastrointestinal tract.

Autonomic

Pertaining to the autonomic nervous system, which controls involuntary body functions such as heart rate, digestion, and respiratory rate.

Somatic

Relating to or affecting the body, distinct from the mind or emotions.

Parasympathetic

A division of the autonomic nervous system responsible for relaxation and conserving energy, often referred to as the "rest and digest" system.