Two Planets Are Orbiting a Star in a Distant Galaxy

question 41

Multiple Choice

Two planets are orbiting a star in a distant galaxy. The first has a semimajor axis of 150 *10⁶ km, an eccentricity of 0.20, and a period of 1.0 Earth years. The second has a semimajor axis of 250 *10⁶ km, an eccentricity of 0.30, and a period of:

• A) 0.46 Earth yr
• B) 0.57 Earth yr
• C) 1.4 Earth yr
• D) 1.8 Earth yr
• E) 2.2 Earth yr

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Definitions:

Marginal Cost

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An individual or entity that makes choices by systematically considering all available information and potential outcomes to maximize their benefit or utility.

Stimulus Package

A package of economic measures put together by a government to stimulate a floundering economy, typically through a combination of spending increases and tax reductions.

Economic Downturn

A period of negative growth in an economy, characterized by a decrease in the GDP, employment, and spending.