A Crate Rests on a Horizontal Surface and a Woman

question 14

Multiple Choice

A crate rests on a horizontal surface and a woman pulls on it with a 10-N force. Rank the situations shown below according to the magnitude of the normal force exerted by the surface on the crate, least to greatest.

• A) 1, 2, 3
• B) 2, 1, 3
• C) 2, 3, 1
• D) 1, 3, 2
• E) 3, 2, 1

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Definitions:

Neurotransmitters

Chemical messengers in the nervous system that transmit signals across the synapse from one neuron to another.

Reuptake

The process by which neurotransmitters are absorbed back into the nerve cell that released them, effectively stopping their action in the synapse.

Neurotransmission

The process by which signals or messages are transmitted through the nervous system by neurons, using chemical substances known as neurotransmitters.

Graded Potential

A shift in the electrical charge across a neuron's membrane, varying in magnitude and not following the all-or-nothing principle.