An Astronaut Leaves Earth in a Spaceship at a Speed

question 66

Multiple Choice

An astronaut leaves Earth in a spaceship at a speed of 0.96 c 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 years
• B)22.7 years
• C)9.34 years
• D)15.0 years
• E)4.20 years

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Definitions:

Nuclear Families

A domestic arrangement where both parents and their kids cohabit as a singular family unit.

Extended Families

A network of relatives beyond the immediate family, including grandparents, aunts, uncles, and cousins, who often live together or maintain close emotional ties.

Single-parent Families

Households headed by only one parent, encompassing the responsibilities of raising children.

Foster Families

Temporary homes provided by individuals or families for children whose biological parents are unable to care for them.