It Has Been Suggested That a Fundamental Physical Unit of Time

question 13

Multiple Choice

It has been suggested that a fundamental physical unit of time is the time required for light to traverse the diameter of the nucleus of an atom approximately 3 × 10^-13 m) . This unit of time is approximately

• A) 1 s.
• B) 10^-4 s.
• C) 2 × 10^-20 s.
• D) 10^-21 s.
• E) 10^-23 s.

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Definitions:

Demand Curve

A graphical representation showing the relationship between the price of a good and the quantity demanded by consumers.

Long Run

A period of time in which all factors of production and costs are variable, allowing companies to adjust to market changes.

Perfectly Competitive

A market structure characterized by infinite buyers and sellers, no barriers to entry, and perfect information, resulting in an efficient market.

Profit Equals Zero

The condition where profit equals zero, also known as the break-even point, is where a business's revenues exactly match its total costs, resulting in neither profit nor loss.