Which of the Following Represents a Standing Wave

question 19

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:

Equilibrium Price

The market price at which the quantity of goods supplied is equal to the quantity of goods demanded.

Close Substitute

A good or service that can easily replace another, fulfilling the same need or want, typically affecting consumer choice.

Equilibrium Price

The price at which the quantity of a good or service demanded by consumers is equal to the quantity supplied by producers, leading to market equilibrium.

Equilibrium Quantity

The quantity of goods or services supplied and the quantity demanded at which their price is stable, and there is no tendency for it to change unless external factors intervene.