What Mechanism Drives the Pulsations in Cepheid Variables

question 31

Multiple Choice

What mechanism drives the pulsations in Cepheid variables?

• A) changes in the rate of core nuclear reactions
• B) the formation and destruction of sunspots
• C) the ionization and recombination of hydrogen
• D) the ionization and recombination of helium
• E) large rates of mass loss

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Definitions:

Consciousness

The quality or state of being aware of an external object or something within oneself.

Central Nervous System

The part of the nervous system consisting of the brain and spinal cord, responsible for processing and sending out nerve signals.

Depolarization

The process of reducing the electrical charge difference across a cell membrane, crucial for the propagation of nerve impulses.

Sodium Ions

Positively charged particles of sodium, vital for maintaining the electrolyte balance and blood pressure in the body.