Once a Terrestrial Planet Had Formed from a Large Number

question 88

Multiple Choice

Once a terrestrial planet had formed from a large number of planetesimals, heat could have melted it and allowed it to differentiate into a metallic core of ____________density and a rocky mantle or crust of ____________ density.

• A)higher; lower
• B)lower; higher
• C)Wrong! The interior stays solid.
• D)Wrong! There is no separation according to density.

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Definitions:

Par

The face value of a bond or other security, which is the amount the issuer promises to repay at maturity.

Dollar-Weighted Return

A measure of an investment's return, taking into account the timing and size of cash flows into and out of the investment.

Internal Rate of Return

An estimate of the profitability of potential investments, calculated as the rate of return that sets the net present value of all cash flows (both positive and negative) from the investment equal to zero.

Holding-Period Return

The total return received from holding an asset or portfolio of assets over a specified period, including interest, dividends, and capital gains.