Ariel Claims That a Pulse Is Described by the Equation

question 81

Multiple Choice

Ariel claims that a pulse is described by the equation where x and y are measured in cm and t in s. Miranda says that it is not possible to represent a pulse with this function because a wave must be a function of x + vt or x − vt. Which one, if either, is correct, and why?

• A) Ariel, because x² - 6.0xt + 9t² = (x - 3.0t)².
• B) Ariel, because a pulse is not an infinite wave.
• C) Miranda, because (x - 3.0t)² is the same as (3.0t - x)².
• D) Miranda, because a pulse is not an infinite wave.
• E) Miranda, because is infinite when x = 0.

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Definitions:

External Person

An individual viewed or considered from an external outlook, often in contrast to one's own internal perspective.

Superstitious

Pertaining to or characterized by beliefs or practices resulting from ignorance, fear of the unknown, trust in magic or chance.

Internal

Originating from within an entity or system, rather than coming from external influences.

Need for Achievement

A psychological drive or motivation to accomplish tasks, achieve excellence, or attain challenging goals.