At What Speed Would an Astronaut Need to Travel So

question 65

Multiple Choice

At what speed would an astronaut need to travel so that he would age 4.20 years while traveling a distance of 4.20 ly as measured by a stationary observer?

• A) 1.00 c
• B) This cannot be done.
• C) 1.00 c/2
• D) .707 c
• E) .750 c

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Definitions:

Door-In-The-Face Effect

A compliance technique where a larger, unreasonable request is made first, followed by a smaller, more reasonable request that is the actual goal.

Conformity Hypothesis

A theory suggesting that individuals adjust their attitudes, beliefs, or behaviors to align with the norms of a group, often in response to real or imagined group pressure.

Coaction Effect

The phenomenon that individuals perform tasks better or work harder in the presence of others doing the same task.

Audience Effect

The impact that the presence of spectators has on an individual's performance, often resulting in enhancements or deteriorations.