Recent content by Lord33

I understand what we must take radius of atom but how i can modified a formula if r<ra?I find limit and get -inf it is wrong.I know that J=∑P/ΔV.

Homework Statement We have coaxial cabel with radius R and R0=3R filled with magnetic.Magnetization J(r)=(r3-R3)/(2R3)*I/(2*pi*r).What is the magnitization if r=0(center of atom)?And what a magnetization direction of atom? Homework EquationsThe Attempt at a Solution I think what magnitization...

What about the amplitude, how do I compare with short waves? If ampiluda will be 1026?

Homework Statement Flat harmonic electromagnetic wave propagates in the positive direction in vacuo axis y. Vector electromagnetic energy flux density is given by: S(y,t)=Sm *cos(wt-ky)2.Wave value: k=(2*π)/λ=0.41 m-1,Amplitude Sm=26 W/m2.Compare this wave with another wave. Homework Equations...