The Moons of Mars,Phobos (Fear)and Deimos (Terror),are Very Close to the Planet

question 22

Multiple Choice

The moons of Mars,Phobos (Fear) and Deimos (Terror) ,are very close to the planet compared to Earth's Moon.Their orbital radii are 9,378 km and 23,459 km respectively.What is the ratio of the orbital speed of Phobos to that of Deimos?

• A) 0.2528
• B) 0.3998
• C) 1.582
• D) 2.858
• E) 3.956

---

Definitions:

Financial Advantage

The benefit gained in financial terms, likely leading to improved profitability or reduced expenses.

Contribution Margin

The amount remaining from sales revenue after variable expenses are deducted, indicating how much revenue is contributing to fixed expenses and profit.

Labor Hours

A measure of the amount of work or effort in terms of hours spent by workers in producing goods or providing services.

Profitable Use

The utilization of resources or assets in a way that generates a financial gain.