Recent content by dnoi

oh yes. thank you.

thanks! now i tried... a*sin(wt)+a*sin(wt+b) = 2sin(wt+b/2)cos(b/2) substituted 1.5a for 2cos(b/2) a*sin(wt)+a*sin(wt+b) = (3/2)a*sin(wt+b/2) is this the right way to go? or maybe i just made some algebraic mistakes

Homework Statement Two waves traveling in the same direction are identical except for a phase difference. Show that if the amplitude of the sum of the waves is 1.5 times larger than the amplitude of the individual waves, then the phase difference must be delta(phi) = 2 arccos (3/4)

oh! i just read the problem wrong! sorry about that. thank you.

Homework Statement Show that, as long as v = w/k, the wave equation is solved by y(x,t) = Ae^(i(kx-wt)) v=velocity w=angular velocity k=wave number