Redshift Measurements on a Galaxy Show That It Is Receding

question 20

Multiple Choice

Redshift measurements on a galaxy show that it is receding from us with a velocity of 7240 km/s. Estimate how far away the galaxy is if the Hubble constant is 22 km/s per million light-years. (c = 3.00 × 10⁸ m/s, 1 ly = 9.461 × 10¹⁵ m, 1 y = 3.156 × 10⁷ s)

• A) 3.1 × 10²⁴ m
• B) 1.2 × 10²⁶ m
• C) 1.2 × 10²⁴ m
• D) 4.1 × 10²³ m
• E) 2.0 × 10²² m

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Consumer

An individual who purchases goods and services for personal use.

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Geoffrey Moore

An American organizational theorist, management consultant, and author known for his work on the technology adoption life cycle and marketing strategies for high-tech products.

Chasm

A significant gap or barrier that must be overcome, often used metaphorically in business and technology adoption contexts.