Solve the Problem $E$ In an Electrical Circuit Is Given By $E = 1.7 \cos 110 \pi t$

question 37

Multiple Choice

Solve the problem.
-The voltage $E$ in an electrical circuit is given by $E = 1.7 \cos 110 \pi t$ , where $t$ is time measured in seconds. Find the frequency of the function (that is, find the number of cycles or periods completed in one second) .

• A) \(\frac { 1 } { 55 }\)
• B) 55
• C) 110
• D) \(\frac { 1 } { 110 }\)

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Definitions:

Output

The total quantity of goods or services produced by a firm, sector, or economy within a certain period of time.

Explicit Costs

Payments by a firm to purchase the services of productive resources.

Implicit Costs

The opportunity costs associated with a firm’s use of resources that it owns. These costs do not involve a direct money payment. Examples include wage income and interest forgone by the owner of a firm who also provides labor services and equity capital to the firm.

Total Cost

The complete amount of money required for the production of a specific quantity of goods or services, including both fixed and variable costs.