In the Figure,a 1

question 39

Multiple Choice

In the figure,a 1.6-kg weight swings in a vertical circle at the end of a string having negligible weight.The string is 2 m long.If the weight is released with zero initial velocity from a horizontal position,its angular momentum (in kg⋅m²/s) at the lowest point of its path relative to the center of the circle is approximately

• A)40
• B)10
• C)30
• D)20
• E)50

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Definitions:

Excitatory Signals

Neural impulses that increase the likelihood of a neuron firing, leading to an action.

Action Potential

A short-lasting event in which the electrical membrane potential of a cell rapidly rises and falls, allowing neurons to transmit signals over distances.

Minimum Intensity

The lowest level of stimulus intensity required to produce a detectable response or result.

Neurotransmitters

Chemicals that transmit signals across a synapse from one neuron to another in the nervous system.