An Asteroidlike Object (Or a Cometary Nucleus) Is Seen to Be

question 12

Multiple Choice

An asteroidlike object (or a cometary nucleus) is seen to be orbiting the Sun in a circular path with a period of 120 years. What is its distance of closest approach to Earth (the separation distance when the object is at opposition) ? (Be careful with your answer; a diagram might be helpful.)

• A) 1314.5 au
• B) 24.33 au
• C) 25.33 au
• D) 23.33 au

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Definitions:

Least-Squares Regression

A statistical method used to determine the line of best fit by minimizing the sum of squares of the distances of data points from the line.

Lubrication Cost

Expenses incurred from the lubricants needed to maintain machinery and equipment, playing a critical role in operational maintenance.

Contribution Margin Ratio

The proportion of sales revenue that exceeds variable costs, indicating how much revenue contributes towards covering fixed costs and generating profit.

Operating Leverage

A measure of how revenue growth translates into growth in operating income and the degree to which a company can increase operating income by increasing revenue.