Simultaneity: Astronaut Spud Nick Is Space-Traveling from Planet X to Planet

question 13

Multiple Choice

Simultaneity: Astronaut Spud Nick is space-traveling from planet X to planet Y at a speed of 0.60c 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 each planet. The explosions are simultaneous in the frame of the planets. What is the difference in the time of arrival of the flashes from the explosions as observed by Spud?

• A) 300 min
• B) 150 min
• C) 75 min
• D) 0 min
• E) 113 min

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Definitions:

Merchandise Trade Balance

The difference between the value of merchandise exports and the value of merchandise imports.

Services Trade Balance

The difference in value between a country's exported and imported services, indicating whether a country is a net exporter or importer of services.

Trade Balance

The difference between a country's exports and imports of goods and services.

Colonial Power

A country that establishes control over foreign territories to exploit them economically, politically, and culturally.