Find a Unit Vector U in the Direction Opposite of

question 72

Multiple Choice

Find a unit vector u in the direction opposite of .

• A) (-1/ )
• B) (1/ )
• C) (-1/ )
• D) (1/ )
• E) (-1/ )

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Definitions:

Endocrine Glands

Glands that secrete hormones directly into the bloodstream, where they regulate processes such as growth, reproduction, and metabolism.

Reticular Formation

A network of neurons located in the brainstem that is critical for regulating wakefulness and sleep-wake transitions.

Neurotransmitter

Chemicals in the brain that transmit signals from one neuron to another, affecting mood, thought processes, and physical actions.

Adenosine

A chemical found in the body that plays a role in promoting sleep and suppressing arousal, and is also a component of RNA.