If an Object Were to Suddenly Shrink and Decrease Its

question 57

Multiple Choice

If an object were to suddenly shrink and decrease its moment of inertia by a factor of 3,what is the difference in energy between the final and initial rotational kinetic energies?

• A)3 times initial K_rot
• B)9 times initial K_rot
• C)8 times initial K_rot
• D)2 times initial K_rot
• E)zero,K_rot remains the same

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Definitions:

Hydrogen

The lightest and most abundant element in the universe, consisting of one proton and one electron, and widely used in chemical reactions and as a potential clean energy source.

Microglia

Specialized glial cells in the brain and spinal cord that act as macrophages, cleaning up debris and dead cells.

Immune System

The body's defense system against infections, diseases, and foreign substances, comprised of various organs, cells, and proteins.

Astrocytes

Star-shaped glial cells in the brain and spinal cord involved in physical support, removal of debris, and transport of nutrients to neurons.