Large Regular Moons Probably Formed

question 72

Multiple Choice

Large regular moons probably formed:

• A) when passing asteroids were captured by the gravitational field of their planet
• B) at the same time as their planets and grew by accretion
• C) after a collision between a planet and a large asteroid fractured off a piece of the planet
• D) after the period of heavy bombardment in the early Solar System
• E) after a planet got kicked out of its orbit and was gravitationally captured by another planet

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Definitions:

SML (Security Market Line)

A line that represents the expected return of an investment as a function of its risk, with the risk measured by the investment's beta.

Zero-investment Portfolio

A portfolio that is constructed without requiring any initial capital, typically by taking long and short positions that offset each other.

Short and Long Positions

Short positions involve selling securities not owned with the hope of buying them back at a lower price, while long positions involve buying securities with the expectation that they will increase in value.

Capital Asset Pricing Model

The Capital Asset Pricing Model (CAPM) is a theoretical framework used to determine the expected return on an investment, factoring in risk and the time value of money.