A 15- $\mu$ F Capacitor Is Charged to 40 V and Then Connected

question 9

Multiple Choice

A 15- $\mu$ F capacitor is charged to 40 V and then connected across an initially uncharged 25- $\mu$ F capacitor.What is the final potential difference across the 25- $\mu$ F capacitor?

• A)12 V
• B)18 V
• C)15 V
• D)21 V
• E)24 V

Recognize the physiological and psychological effects of drug withdrawal and how substance dependency is manifested.

Describe the role and impact of psychoactive drugs on mental health and behavior.

Analyze the factors influencing drug absorption and the concept of drug equivalency among different substances.

Explain the mechanism of action of caffeine and its effects on the brain.

---

Definitions:

Medulla

A part of the brain stem that regulates vital and automatic functions such as breathing and the sleep-wake cycle.

Serotonin

A neurotransmitter that is involved in mood disorders such as depression.

Sudden Infant Death Syndrome

An unexplained death, usually during sleep, of a seemingly healthy baby less than a year old, also known as crib death.

Biofeedback

A technique that involves using electronic monitoring to train individuals to gain control over involuntary bodily functions.