A Satellite Is in a Circular Orbit About the Earth

question 55

Multiple Choice

A satellite is in a circular orbit about the Earth at a distance of one Earth radius above the surface.What is the speed of the satellite? (The radius of the Earth is 6.4 × 10⁶ m,and G = 6.67 × 10−¹¹ N⋅m²/kg². )

• A) 2 800 m/s
• B) 4 200 m/s
• C) 5 600 m/s
• D) 16 800 m/s

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Definitions:

Real Interest Rate

The interest rate adjusted for inflation, representing the true cost of borrowing or the true return on savings.

Anticipated Inflation

The rate of inflation that consumers and firms expect in the future, often based on past inflation rates and current economic conditions.

Price Level

A measure of the average prices of goods and services in an economy, reflecting the purchasing power of money and the inflation rate.

Inflation Rate

How quickly the overall price level for goods and services climbs, resulting in lower purchasing capability.