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

question 47

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:

Bond Portfolio Management

The process of creating and managing a portfolio of bonds to achieve specific investment objectives, such as income generation or capital preservation.

Asset Matching

A strategy used in portfolio management that involves matching the durations of assets and liabilities to mitigate risk.

Duration Matching

A strategy used in portfolio management to align the durations of assets and liabilities, reducing interest rate risk.

Bond Portfolio Management

The process of creating and managing a collection of bonds to achieve specific investment objectives, taking into account factors like risk tolerance, return requirements, and liquidity needs.