After a Massive- Star Supernova, What Is Left Behind

question 99

Multiple Choice

After a massive- star supernova, what is left behind?

• A)always a black hole
• B)always a white dwarf
• C)always a neutron star
• D)either a white dwarf or a neutron star
• E)either a neutron star or a black hole

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Definitions:

Function

In mathematics, a relation between sets that associates every element of a first set to exactly one element of the second set.

Absolute Value

The distance of a number from zero on the number line, without regard to direction, represented as |x|.

Function

A correspondence between an array of inputs and a choice of outputs, with the rule that each input associates with just one output.

Speed

The rate at which an object moves, calculated as distance traveled per unit of time.