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

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Definitions:

Standards

Performance goals, often relating to how much a product should cost.

Bonuses

Additional financial rewards given to employees as an incentive or reward for their performance.

Standard Costs

Predetermined costs serving as a benchmark for evaluating the actual cost performance of operations.

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The process of evaluating the performance of a system, organization, or component by comparing its output with its input.