Suppose You Observe a Star Emitting a Certain Emission Line

question 73

Essay

Suppose you observe a star emitting a certain emission line of helium at 584.8 nm.The rest wavelength of this line is 587.6 nm.How fast is the star moving? Is it moving toward you or away from you?

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Definitions:

Brain Injury

trauma to the brain, which can result in temporary or permanent impairment of cognitive, physical, and psychosocial functions.

Personality Changed

The alteration or development in an individual's pattern of thoughts, feelings, and behaviors that makes up their distinct personality over time.

Auditory Cortex

The region of the brain responsible for processing auditory information, located in the temporal lobe.

Temporal Lobes

Regions of the brain located on each side of the head above the ears, important for processing auditory information and involved in memory and emotion.