You Measure the Redshift of a Distant Galaxy and Find

question 55

Multiple Choice

You measure the redshift of a distant galaxy and find, using Hubble's law and assuming a Hubble constant of 70 km/s/Mpc, that its distance is 1 billion ly (310 Mpc) .Imagine that an observer in that galaxy is measuring the recession speed of the Milky Way at the same time as your measurement.What would be the speed that the remote alien observer would record?

• A) 700 km/s
• B) 21,500 km/s
• C) 3,400 km/s
• D) 10,700 km/s
• E) 6,300 km/s

---

Definitions:

Schizophrenia

A severe mental disorder characterized by distortions in thinking, perception, emotions, sense of self, and behavior.

Expressed Emotion

A measure of the amount of emotion displayed, typically within a family.

Relapse

The act of falling back into a previous state or behavior, often used in the context of addiction or illness.

Schizophrenia

A severe mental disorder characterized by profound disruptions in thinking, affecting language, perception, and the sense of self, often accompanied by auditory hallucinations and delusional thinking.