Protostars Are

question 48

Multiple Choice

Protostars are

• A) stars made almost entirely out of protons.
• B) objects with masses less than about 0.08 solar masses,which do not have enough mass to become true stars.
• C) old stars,contracting after using up all of their available hydrogen fuel.
• D) very young objects,still contracting before becoming true stars.

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Definitions:

Present Value Factor

A factor used to calculate the present value of a future amount, reflecting the time value of money.

Annuities

Financial products that provide regular payments over a set period of time, often used as an income stream for retirees.

r

Often represents the rate of return or interest rate in financial equations and models.

APR

Annual Percentage Rate (APR) is a measure that depicts the actual yearly cost of funds over the term of a loan or the return on an investment, including any fees or additional costs associated with the transaction.