- #1

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## Homework Statement

phi(x,t) = A e *[-a(bx+ct)*2]

I'm trying to find the speed of the equation

## Homework Equations

f(x+vt) +vt which means it is in the negative x-direction

f(x)= e^-ax^2

plugging in x'=x+vt

A e *[-a(bx+ct)*2]

where a= constant A= amplitude v=c= speed of light

## The Attempt at a Solution

I know that is speed = w(angular frequency)/K

This issue that I am having is that I don't have any number besides c which is the speed of light

I know that I can use partial fractions [partial phi/ partial t]divided by [partial phi/ partial x] but I'm not allowed to use that way. What is another way I can solve this problem