How Was the Dwarf Planet Pluto Discovered

question 116

Multiple Choice

How was the dwarf planet Pluto discovered?

• A) by prediction using Newton's laws to account for the deviations from uniform orbits of Uranus and Neptune
• B) by the infrared cameras on the IRAS spacecraft
• C) by Voyager spacecraft cameras, which were used between planetary encounters to survey the planetary system
• D) by searching photographs of the sky for an object that moved against the background of distant stars

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Definitions:

CM Ratio

Contribution margin ratio, showing the portion of sales revenue that is not consumed by variable costs and contributes to covering fixed costs.

Fixed Expenses

Costs that do not fluctuate with the level of production or sales, such as rent, salaries, and insurance premiums.

Units

A measure of quantity for items that are being produced, sold, or inventoried by a company.

Target Profit

The profit a company aims to achieve for a specific period.