What Is the Escape Speed from a Planet of Mass

question 21

Multiple Choice

What is the escape speed from a planet of mass M and radius R if M = 3.2 × 10²³ kg and R = 2.4 × 10⁶ m?

• A) 5.5 km/s
• B) 4.2 km/s
• C) 5.2 km/s
• D) 4.8 km/s
• E) 3.7 km/s

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Definitions:

Unemployment Rate

A measure indicating the proportion of the workforce that is not employed but is actively seeking work and willing to work.

Recessionary Gap

The difference between the actual output of an economy and the output it would produce if it were at full employment, indicating underperformance.

Equilibrium GDP

The level of Gross Domestic Product (GDP) at which aggregate supply equals aggregate demand, indicating a state of economic balance.

National Debt

The total amount of money that a country's government has borrowed by various means, including foreign governments and domestic institutions.