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:

Generalized Dissociative Amnesia

A psychological condition in which a person cannot recall important personal information, not due to ordinary forgetfulness but often triggered by trauma or stress.

Psychomotor Retardation

A slowing-down of thought and a reduction of physical movements in an individual, often an indicator of major depression or other psychiatric disorders.

Obsessive-compulsive Disorder

A mental health disorder characterized by uncontrollable, recurring thoughts (obsessions) and behaviors (compulsions) that the individual feels the urge to repeat.

Panic Disorder

A psychiatric disorder characterized by recurrent, unexpected panic attacks and ongoing concern about having more attacks or changing behavior to avoid them.