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

question 1

Multiple Choice

Astronaut Mark Uri is space-travelling from planet X to planet Y at a speed of 0.65 c.When he is precisely halfway between the planets,a distance of 1 light-hour from each,nuclear devices are detonated.The explosions are simultaneous in Mark's frame.What is the difference in 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

---

Definitions:

Evolutionary Forces

Factors such as mutation, natural selection, gene flow, and genetic drift that influence the genetic variation and evolution of species over time.

Nonoverlapping Distributions

Statistical phenomena where two or more groups do not share common outcomes or values, showing distinct differences.

Verbal Skills

The ability to express ideas effectively in spoken or written form and to understand information received verbally.

Personality Traits

Enduring characteristics or qualities that define an individual's patterns of thought, feeling, and behavior.