Four Traveling Waves Are Described by the Following Equations,where All

question 6

Multiple Choice

Four traveling waves are described by the following equations,where all quantities are measured in SI units and y represents the displacement. I: y = 0.12 cos(3x - 21t)
II: y = 0.15 sin(6x + 42t)
III: y = 0.13 cos(6x + 21t)
IV: y = -0.27 sin(3x - 42t)
Which of these waves have the same period?

• A) I and III, and also II and IV
• B) I and IV, and also II and III
• C) I and II, and also III and IV
• D) All of them have the same period.
• E) They all have different periods.

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Definitions:

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A person who oversees the work of others, ensuring tasks are completed effectively and efficiently while providing guidance and support.

Diagonal Communication

The transmission of messages to higher or lower organizational levels in different departments.

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The hierarchical layers within an organization, structured according to authority, responsibility, and communication flow.

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The transmission of messages from higher to lower levels in an organization.