Which of the Following Is NOT a Way in Which

question 59

Multiple Choice

Which of the following is NOT a way in which astronomers detect dark matter in clusters of galaxies?

• A) by determining the amount of mass necessary to gravitationally collapse clouds of gas to form the number of stars present
• B) by determining the amount of mass necessary to gravitationally hold onto the hot gas surrounding galaxy clusters
• C) by determining the amount of mass necessary to gravitationally hold a cluster of galaxies together
• D) by determining the amount of mass necessary to gravitationally lens images of distant objects
• E) None of the above; all of these are ways that astronomers detect dark matter in galaxy clusters.

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Definitions:

Integers

Whole numbers that can be positive, negative, or zero, but not fractions or decimals.

Decimal Numbers

Numbers expressed in the base-10 numeral system, including integers, fractions, and real numbers notated with a decimal point.

New Operator

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Int Variable

A variable in programming that stores an integer, which is a number without a fractional component, used for counting or indexing.