We Receive a Radio Message from a Civilization Around a Star

question 24

Multiple Choice

We receive a radio message from a civilization around a star about 40 lightyears from Earth? If we reply right away, how long will it be between the time THEY sent the message and the time they receive our reply?

• A) 40 years
• B) 80 years
• C) 400 years
• D) 20 years
• E) it depends on the speed of the radio wave; so it can't be calculated from the information given

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Definitions:

Phobias

Extreme or irrational fears or aversions to specific objects, situations, or activities that cause significant distress or impairment.

Negative Reinforcement

A behavioral concept where the removal of an undesirable or unpleasant stimulus following a behavior increases the likelihood of that behavior being repeated in the future.

Punishers

Stimuli that decrease the likelihood of a behavior being repeated, used in the context of behavioral psychology.

Teenage Daughter

A girl going through the phase of adolescence, typically aged between 13 and 19 years, experiencing physical, psychological, and social changes.