- #1
chemic_23
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Homework Statement
im quite confused of describing whether these wave functions y(x,t)= sin(kx-wt) ; y(x,t)=sin(kx+wt) ; y(x,t)=cos(kx-wt) ; y(x,t)=cos(kx+wt) travel to the right or to the left.
My prof told me that y(x,t)=sin(wt-kx) travels to the right (+x direction) but based on my other book, it's moving to the left (-x direction) pls can someone explain it to me? pls thank you...