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.
B.
C.
D.
E.
is infinite when x = 0.Answer: A
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