An Astronaut Leaves Earth in a Spaceship at a Speed

question 16

Multiple Choice

An astronaut leaves Earth in a spaceship at a speed of 0.960c relative to an observer on Earth. The astronaut's destination is a star system 14.4 light-years away (one light-year is the distance light travels in one year.) According to the astronaut, how long does the trip take?

• A) 14.4 y
• B) 22.7 y
• C) 9.34 y
• D) 15.0 y
• E) 4.20 y

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Definitions:

Profitable Level

Refers to the point at which a business or operation generates revenue exceeding its costs, leading to financial gain.

Output

is the total amount of goods and services produced by an economy, firm, or production process.

Market Price

The actual selling price of a good or service in the marketplace, influenced by supply and demand.

Long Run

A period in which all factors of production and costs can be fully adjusted, including entry and exit of firms.