Recent content by ptolomeo

I think i found a way to solve it so if i make two vectors where A1 and A2 is the module of each vector I just have to sum them and then find the angle of the resulting vector. Where θ1=k1x-w1t θ2=k2x-w2t u1=A1cosθ1 u2=A2cosθ2 And alfa=(θ1-θ2)/2+θ2=θ1+θ2/2

Expresing in terms of A=√A21+A22 I arrive to the expresion u(x,t)=(A/sinθ)(tan(θ)cos(k1x+w1t)+cos(k2x+w2t)) I don't see how it can help :/ but thanks Maybe I can prove that there's a Amplitude modulation without merging the cos

Homework Statement Hi Two wave superposition with different wavelength , amplitude and frequency u1(x,t)=A1cos(k1x+w1t) u2(x,t)=A2cos(k2x+w2t) a)Show that an amplitude modulation is obtained Homework Equations No relevant equations The Attempt at a Solution...