A Uniform Sphere of Radius R Rotates About a Diameter

question 51

Multiple Choice

A uniform sphere of radius R rotates about a diameter with angular momentum of magnitude L.Under the action of internal forces the sphere collapses to a uniform sphere of radius R/2.The magnitude of its new angular momentum is:

• A)L/4
• B)L/2
• C)L
• D)2L
• E)4L

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Definitions:

Essential Nutrients

Nutrients that cannot be synthesized by the body and must be obtained from the diet, including certain amino acids, fatty acids, vitamins, and minerals.

Kilocalories

A unit of energy measurement in nutrition, commonly called a calorie, equivalent to 1000 small calories.

Energy Content

The amount of energy stored in a substance or system, which can be released or utilized through various processes.

Lipid

Substance composed principally of carbon, oxygen, and hydrogen; contains a lower ratio of oxygen to carbon and is less polar than carbohydrates; generally soluble in nonpolar solvents.