Question
A wave propagating along the x axis . The displacement of the particles is along the Z axis at t=0 is given by Z= exp[-(x+2)^2] where x is in metres . At t=1 Z= [-(2-x)^2] find the speed of the wave.
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$\begingroup$ Please note that Physics.StackExchange is not a homework help site. Please read this Meta post on asking homework-like questions and this Meta post for "check my work" problems. $\endgroup$– Kyle KanosMar 29, 2016 at 10:25
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1 Answer
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The graphs of these two functions are like normal distribution functions and so have a bell shape.
What you need to do is find out how far the peak moves from $t=0$ to $1=1$.
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$\begingroup$ that is what iam asking so iwould have to plot it all the way or there is some other method or formula $\endgroup$ Mar 30, 2016 at 12:24
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$\begingroup$ Look up normal distribution to see where the maximum occurs or sketch the graph. $\endgroup$– FarcherMar 30, 2016 at 14:26
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$\begingroup$ look i really am unable to understand what do u mean by the normal distribution $\endgroup$ Mar 31, 2016 at 3:06
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$\begingroup$ Have a look at this en.m.wikipedia.org/wiki/Gaussian_function $\endgroup$– FarcherMar 31, 2016 at 5:43