Recent content by Darly

1. The problem statemeent, all variables and given/known data The field electric's electromagnetic wave issued by a strut isotropic source is: \vec{E} = E_{0} r_{0}*cos(ωt − kr) \vec{θ} Find the magnetic field in spherical coordinates Homework Equations I think, i use the equation \vec{B} =...

Hi people, I studying electromagnetic waves (intermediate) and I don't understand how the expression for linear momentum of a wave is obtained, if the wave doesn't carry any mass. In particular, I have to explain why the radiation pressure on a perfect absorber is half that on a perfect...

Homework Statement Show that the funtions y(x,t) and g(x,t) satisfy the differential equation of a wave unimensional. What function is a wave?Homework Equations y(x,t)=x² +v²t² ; d(x,t)= 2Acos(kx)cos(wt) frac{d²y}{dt²}=2v² frac{d²y}{dx²}=2 The Attempt at a Solution frac{d²y}{dt²}=2v²...