One Piece of Evidence That Can Help Astronomers Sort Out

question 18

Multiple Choice

One piece of evidence that can help astronomers sort out how the planets in our solar system formed is

• A) discovering other galaxies of stars beyond the Milky Way
• B) counting the number of moons around each planet in our own solar system
• C) finding circumstellar disks of material around nearby stars
• D) counting the craters on the surface of Jupiter, Saturn, Uranus, and Neptune
• E) measuring variations in the amount of snowfall in northern Canada during this century

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Definitions:

Straight-Line Method

A method of allocating the cost of a tangible asset over its useful life in equal annual installments.

Net Present Value

A method used to evaluate the profitability of an investment, calculating the difference between the present value of cash inflows and outflows over a period.

Discount Rate

The interest rate used in discounted cash flow (DCF) analyses to determine the present value of future cash flows.

Payback Period

The period needed to recoup the expenses of an investment.