Three Identical Balls Are Tied by Light Strings to the Same

question 47

Multiple Choice

Three identical balls are tied by light strings to the same rod and rotate around it, as shown below.Rank the balls according to their rotational inertia, least to greatest.

• A)1, 2, 3
• B)3, 2, 1
• C)3, then 1 and 2 tie
• D)1, 3, 2
• E)All are the same

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Definitions:

Insomnia

A sleep disorder characterized by difficulty falling or staying asleep, by waking too early, or by sleep that is light, restless, or of poor quality.

Dopamine

A type of neurotransmitter associated with pleasure, movement, and the brain's reward system.

Serotonin

A neurotransmitter that plays a key role in mood regulation, appetite, and sleep.

GABA

Gamma-aminobutyric acid, a neurotransmitter in the brain that is involved in inhibiting excitatory processes and is associated with reducing anxiety.