Which of the Following Represents a Standing Wave

question 65

Multiple Choice

Which of the following represents a standing wave?

• A) y = (6.0 mm)sin[(3.0 m^-1)x + (2.0 s^-1)t] - (6.0 mm)cos[(3.0 m^-1)x + 2.0]
• B) y = (6.0 mm)cos[(3.0 m^-1)x - (2.0 s^-1)t] + (6.0 mm)cos[(2.0 s^-1)t + 3.0 m^-1)x]
• C) y = (6.0 mm)cos[(3.0 m^-1)x - (2.0 s^-1)t] - (6.0 mm)sin[(2.0 s^-1)t - 3.0]
• D) y = (6.0 mm)sin[(3.0 m^-1)x - (2.0 s^-1)t] - (6.0 mm)cos[(2.0 s^-1)t + 3.0 m^-1)x]
• E) y = (6.0 mm)sin[(3.0 m^-1)x] + (6.0 mm)cos[(2.0 s^-1)t]

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Definitions:

Public Interest Theory

A theory suggesting that regulation is supplied in response to the demand of the public for the correction of inefficient or inequitable market practices.

Industrial Regulation

Government policies and rules aimed at regulating and controlling industry practices to promote fair competition, protect consumer interests, and prevent market abuses.

Natural Monopolies

A market structure where a single firm can produce the entire market output at a lower cost than could multiple firms, often due to high fixed costs.

Laissez-Faire Antitrust

An approach to antitrust policy that advocates for minimal government intervention in the market and a greater reliance on market forces.