Hubble's Constant Is Related to the Age of the Universe,but

question 20

Multiple Choice

Hubble's constant is related to the age of the universe,but the precise relationship depends on the way in which the expansion rate changes with time.For a given value of Hubble's constant today (such as 24 km/s/Mly) ,the age of the universe is oldest if what is true?

• A)The expansion rate has remained nearly constant with time (a coasting universe).
• B)The expansion rate has slowed by the amount expected for a universe with the critical density (a critical universe).
• C)The expansion rate has been increasing with time (an accelerating universe).
• D)The expansion rate is slowing dramatically with time (a recollapsing universe).

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Definitions:

Science Of Behavior

The systematic study and analysis of how individuals behave and interact, encompassing a wide range of psychological and sociological aspects.

Control

In an experimental context, refers to maintaining influence over all variables except the one being tested to determine its effect accurately.

Objective Introspection

The process of examining and measuring one’s own thoughts and mental activities.

Empiricism

A philosophical stance emphasizing the importance of experience and evidence gathered through the senses in the acquisition of knowledge.