Astronaut Mark Uri Is Space-Traveling from Planet X to Planet

question 37

Multiple Choice

Astronaut Mark Uri is space-traveling from planet X to planet Y at a speed of relative to the planets,which are at rest relative to each other.When he is precisely halfway between the planets,a distance of 1.0 light-hour from each one as measured in the planet frame,nuclear devices are detonated on both planets.The explosions are simultaneous in Mark's frame.What is the difference in the time of arrival of the flashes from the explosions as observed by Mark?

• A) 0 min
• B) 180 min
• C) 90 min
• D) 360 min
• E) 113 min

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Definitions:

Justification Report

Detailed written arguments recommending a course of action backed by research and analysis.

Closure Report

A comprehensive summary document that signifies the completion of a project, detailing objectives achieved, outcomes, and any outstanding matters.

Incident Report

A document detailing an unexpected event or accident, its consequences, and the actions taken to address it, usually within a workplace or institution.

Observable Behaviours

Actions or reactions of individuals that can be seen and measured objectively in various settings.