The Spectrum of a Galaxy Is Observed to Have a Hydrogen

question 42

Essay

The spectrum of a galaxy is observed to have a hydrogen emission line,normally found at 656.3 nm,with a measured wavelength of 856.3 nm.What is its distance if the Hubble constant is 22 km/s/Mly?

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Definitions:

Brief Psychotic

Describes a sudden, temporary episode of psychotic behavior, such as hallucinations or delusions, lasting less than a month.

Delusions

False beliefs held with conviction despite evidence to the contrary.

Disorganized Speech

A way of speaking that is incoherent and lacks the normal structure, making it hard for others to understand, often associated with severe mental disorders.

Irving Gottesman

A psychologist known for his work on schizophrenia genetics, demonstrating the importance of heredity in the development of the disorder.