Solve the Problem $\mathrm { V } = \cos 2 \pi \mathrm { t }$

question 260

Multiple Choice

Solve the problem.
-In an electric circuit, the electromotive force is defined as $\mathrm { V } = \cos 2 \pi \mathrm { t }$ , where $\mathrm { t }$ is time in seconds. Solve the equation for $\mathrm { t }$ .

• A) \(t = \frac { 1 } { 2 \pi } \arccos V\)
• B) \(t = 2 \pi \arccos V\)
• C) \(t = 2 \pi \cos \mathrm { V }\)
• D) \(t = \frac { 1 } { 2 \pi } \cos V\)

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Definitions:

Magic Bullet Theory

A mass communication theory that implies media messages are directly received and wholly accepted by the audience.

Active Audience Model

A theory that suggests media consumers are not passive recipients but actively engage with and interpret media content according to their personal experiences and social contexts.

Textual Poaching

The act of audiences and fans creating their own meanings, interpretations, or adaptations from media contents originally produced by others.

Magic Bullet Theory

A model in media studies suggesting that mass media messages have a direct, immediate, and powerful effect on the public.