Of the Following Components,which Are Responsible for the Main Spectral

question 28

Multiple Choice

Of the following components,which are responsible for the main spectral emission lines found in an emission nebula?

• A) Neutral helium,carbon,oxygen,and iron atoms
• B) Ionized helium atoms and electrons
• C) Protons,positrons,helium nuclei,and neutrinos
• D) Hydrogen atoms,protons,and electrons

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Definitions:

Sealed Lead-Acid Battery

A type of rechargeable battery that uses lead peroxide and sponge lead, contained in a sealed unit to prevent leakage and reduce maintenance.

Carbon Pile Testing

A method for assessing the performance of an electrical component or system, such as a battery or alternator, by applying adjustable loads.

Degrees Fahrenheit

A scale for measuring temperature where the freezing point of water is 32 degrees and the boiling point is 212 degrees under standard atmospheric conditions.

Sulfated

Describes a battery condition where lead sulfate crystals accumulate on the battery plates, often due to prolonged discharging, reducing the battery's capacity and performance.