A 20-M String Is Fixed at Both Ends and Tightened Until

question 23

Multiple Choice

A 2.0-m string is fixed at both ends and tightened until the wave speed is 78m/s. What is the frequency of the standing wave shown in the figure?

• A) 120 Hz
• B) 230 Hz
• C) 350 Hz
• D) 470 Hz

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Definitions:

Maslow's Theory

A psychological theory of human motivation that suggests individuals are motivated to fulfill basic needs before moving on to higher level needs, arranged in a hierarchy.

Peace

A state of tranquility or quietness, often used to describe the absence of war, conflict, or disturbance in a social or personal context.

Productivity

The measure of efficiency in converting inputs into useful outputs, often used to gauge the effectiveness of an individual, team, organization, or economy.

Volunteers

Individuals who offer their time, skills, and effort to a cause or organization without financial compensation.