Which Two Quantities Are Shown to Be Related to One

question 78

Multiple Choice

Which two quantities are shown to be related to one another in Hubble's law?

• A) distance and brightness
• B) brightness and the width of the 21-cm radio emission line of hydrogen
• C) brightness and recession velocity
• D) distance and redshift of light from the object

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Definitions:

Methamphetamine Dependence

A strong physical and psychological dependence on the stimulant drug methamphetamine, characterized by the compulsive need to use despite harmful consequences.

Methylphenidate (Ritalin)

The most frequently prescribed stimulant medication for children with attention deficit hyperactivity disorder (ADHD).

ADHD

A neurodevelopmental condition, Attention Deficit Hyperactivity Disorder, manifests through lack of focus, high levels of activity, and impulse control issues.

Stimulant Medications

Drugs that increase activity in the brain and nervous system, often prescribed to treat conditions like ADHD and narcolepsy.