Why Were the Mass and Density of Pluto Unknown Until

question 42

Essay

Why were the mass and density of Pluto unknown until Charon was found?

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Definitions:

Direct Expense

Costs that can be directly attributed to a specific product, service, or department within a business.

Indirect Expense

Costs that are not directly attributable to a specific product or service, such as utilities or administrative salaries.

Rent

A periodic payment made by a tenant to a landlord in exchange for the use of land, a building, or other property.

Contribution Margin

The difference between sales revenue and variable costs, indicating how much revenue contributes to fixed costs and profits.