The Sun Has an Expected Main-Sequence Lifetime of About 10¹⁰

question 89

Multiple Choice

The Sun has an expected main-sequence lifetime of about 10¹⁰ years.What is the lifetime on the main sequence of a 2 solar mass star?

• A)1.8×10⁶ years
• B)1.8×10⁹ years
• C)1.8×10¹⁰ yearsα
• D)1.8×10¹¹ years

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Definitions:

Neoclassical Economics

A mainstream approach to economics that focuses on the determination of goods, outputs, and income distributions in markets through supply and demand.

Behavioral Economics

A field of economics that analyzes the effects of psychological, cognitive, emotional, cultural, and social factors on economic decisions.

Impulse Buying

A spontaneous, unplanned decision to buy a product or service, typically made right before a purchase.

Neoclassical Theory

An economic theory that focuses on how the perception of utility and costs influences supply and demand in markets, leading to an equilibrium.