An electromagnetic wave with frequency $65\mathrm{.}0$Hz$65\mathrm{.}0$Hz travels in an insulating magnetic material that has dielectric constant $3\mathrm{.}643\mathrm{.}64$ and relative permeability $5\mathrm{.}185\mathrm{.}18$ at this frequency. The electric field has amplitude $7\mathrm{.}20103$V$/$m$7\mathrm{.}20103$V$/$m$.$

Part A

What is the speed of propagation of the wave?

Express your answer in meters per second.

Activate to select the appropriates template from the following choices. Operate up and down arrow for selection and press enter to choose the input value typeActivate to select the appropriates symbol from the following choices. Operate up and down arrow for selection and press enter to choose the input value type

vv $=$

nothing

m$/$sm$/$s

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Part B

What is the wavelength of the wave?

Express your answer in meters.

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$=$

nothing

mm

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Part C

What is the amplitude of the magnetic field?

Express your answer in teslas.

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B$0$B$0=$

nothing

TT

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Part D

What is the intensity of the wave?