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The equation of a wave travelling on a s...

The equation of a wave travelling on a string stretched along the X-axis is given by
`y=Ae^(((-x)/(a) + (t)/(T))^(2)`
(a) Write the dimensions of A, a and T.
(b) Find the wave speed.
(c) In which direction is the wave travelling?
(d) Where is the maximum of the pulse located at `t =T` and at `t = 2T`?

A

The speed of the wave is a/T.

B

The wave is travelling along negative x-axis

C

The maximum of the pulse located at t = T is x = -a

D

The maximum of the pulse located at t = 2T is x = -2a

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A, B, C, D
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