The Average Intensity of Sunlight Impinging on Earth Is Measured

question 66

Multiple Choice

The average intensity of sunlight impinging on Earth is measured to be about 1.4 kW/m².What is the power of sunlight emitted by the sun? (Earth-Sun distance = 1.5 × 10⁸ km,Earth radius = 6.4 × 10³ km)

• A)4.0 × 10²⁶ W
• B)3.2 × 10²² W
• C)7.2 × 10¹⁴ W
• D)7.6 × 10⁸ W

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Definitions:

U.S. Government Securities

Financial instruments issued by the United States Department of the Treasury to finance government spending as an alternative to taxation.

Federal Reserve

The central banking system of the United States, responsible for implementing the country's monetary policy and regulating its financial institutions.

Liquidity

A measure of the ease with which an asset can be converted into money without a significant loss of value.

Significant Loss

A substantial reduction in the value of an asset or a large financial deficit experienced by an individual or entity.