Solve the Problem $\mathrm { v } = 156 \cos \left( 120 \pi \mathrm { t } - \frac { \pi } { 3 } \right)$

question 224

Multiple Choice

Solve the problem.
-The output voltage for an a.c. generator is approximated by $\mathrm { v } = 156 \cos \left( 120 \pi \mathrm { t } - \frac { \pi } { 3 } \right)$ . Find the smallest positive value of $t$ for which the output is 68 volts. (Use $3.1416$ as an approximation for $\pi$ .)

• A) \(t = 0.0124\)
• B) \(t = 0.0114\)
• C) \(\mathrm { t } = 0.0047\)
• D) \(t = 0.0057\)

---

Definitions:

Nonsuicidal Self-injury

Behaviors where individuals deliberately harm their own body tissue without the intention of suicide, often as a coping mechanism.

Psychological Disorder

A pattern of behavioral, cognitive, emotional, or physical symptoms that leads to distress, disability, or an increased risk of suffering, death, pain, or loss of freedom.

Day-to-day Life

Day-to-day life refers to the routine activities and experiences that an individual goes through on a typical day.

Delusions

False beliefs held with strong conviction despite superior evidence to the contrary, often observed in psychiatric conditions like schizophrenia.