The Luyten 726-8 Binary System Is Approximately 9 Light-Years Away

question 19

Multiple Choice

The Luyten 726-8 binary system is approximately 9 light-years away. If we send a spacecraft to visit this system traveling at 90% of the speed of light, how long will a one- way trip take as measured from the Earth?

• A) it's impossible to tell unless we know the spacecraft's method of propulsion
• B) more than 10 years
• C) 10 years
• D) less than 10 years

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Definitions:

Consideration

An item of worth traded between entities within a contractual agreement, rendering the contract enforceable by law.

Enforce

To compel observance of or compliance with a law, rule, or obligation.

Consideration

The concept in contract law that involves something of value exchanged between parties, which is necessary for a contract to be considered legally binding.

Lesser Sum

An amount of money that is smaller in comparison to another sum, often within the context of payment obligations or settlements.