Estimate the Speed of Recession of a Galaxy That Is $H = 20 \frac { \mathrm { km } / \mathrm { s } } { \mathrm { Mly } }$

question 11

Multiple Choice

Estimate the speed of recession of a galaxy that is 10 billion light-years away if $H = 20 \frac { \mathrm { km } / \mathrm { s } } { \mathrm { Mly } }$ ? $\left( c = 3.00 \times 10 ^ { 8 } \mathrm {~m} / \mathrm { s } \right)$

• A) \(0.5 \mathrm { c }\)
• B) \(0.3 \mathrm { c }\)
• C) \(0.7 \mathrm { c }\)
• D) \(0.1 \mathrm { c }\)

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Definitions:

Avoid the Risk

A risk management strategy involving actions to prevent exposure to a risk, often by choosing not to engage in an activity.

High Rate of Failure

A situation where there is a significant percentage of attempts or endeavors that do not succeed, often used in the context of startups or new projects.