An electromagnetic wave with frequency 65.0 Hz travels inan insulating magnetic material that has dielectric constant 3.64 andrelative permeability 5.18 at this frequency. The electric field has amplitude7.20 * 10^-3 V/m. (a) What is the speed of propagation of thewave? (b) What is the wavelength of the wave? (c) What is the amplitudeof the magnetic field?

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