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

question 16

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 period of revolution of Phobos to that of Deimos?

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

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Definitions:

Free Will

The capacity of individuals to make choices that are not predetermined by past events, genetics, or environment.

Inflated Price

A price that is considered higher than the product's or service's true value, often due to market dynamics, scarcity, or manipulation.

Undue Influence

An improper or unfair persuasion that compels someone to act against their will, often impacting the validity of contracts and wills.

Guardian

A legally appointed protector who is responsible for the personal and property interests of another individual, known as a ward.