A 50-N Object Falling in Air Experiences 30 N of Air

question 72

Multiple Choice

A 50-N object falling in air experiences 30 N of air resistance.The net force on the falling object is

• A)0 N.
• B)20 N.
• C)50 N.
• D)80 N.

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Definitions:

Thoracic Plexus

A network of nerves in the thoracic region of the body that is involved in controlling the chest muscles and sensory perception in the thoracic area.

Spinal Plexuses

Networks of interlinked nerves originating from the spinal cord, which supply sensation and motor control to various parts of the body.

Subarachnoid Space

The area between the arachnoid mater and pia mater surrounding the brain and spinal cord, filled with cerebrospinal fluid.

Meninges

The protective membranes covering the brain and spinal cord, divided into three layers: dura mater, arachnoid mater, and pia mater.