A Motor Develops Power as Shown in the Graph

question 22

Multiple Choice

A motor develops power as shown in the graph. The energy expended by the motor in the time interval between t = 10 s and t = 30 s is

• A) 1.0 J
• B) 1.3 J
• C) 0.20 kJ
• D) 0.60 kJ
• E) 0.70 kJ

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Definitions:

Serotonin

A neurotransmitter with various functions, including contributing to feelings of well-being and happiness.

Sleep

A naturally recurring state of mind and body characterized by altered consciousness, relatively inhibited sensory activity, and inhibition of nearly all voluntary muscles.

Mood

A temporary state of feeling or emotion that impacts a person's perception of the world around them.

Excitatory Neurotransmitter

Chemical substances that transmit nerve signals across a synapse from one neuron to another, typically promoting an action potential.