==> Infrared waves from the sun, green light from the sun, and X-rays from the sun, all travel through vacuum.
==> Ocean surf waves travel through water.
==> Microwaves in an oven travel first through air, and then later through meatloaf or chicken.
==> Seismic waves (earthquakes) travel through rocks and dirt.
The electric field at arbitrary point outside the sphere is determined as the E = σr³/k.
<h3>Electric field determined from Gauss law</h3>
The electric field of the surface is determined from Gauss law as shown below;
E ∫ds = Q/ε
E (4πr²) = Q/ε
E = Q/4πεr² . r

<h3>Electric field outside the sphere with dielectric with polarization</h3>


where;
- σ is dipole moment of atom of the metal
- k is dielectric constant
Thus, the electric field at arbitrary point outside the sphere is determined as the E = σr³/k.
The complete question:
A metal sphere of radius R carries a total charge Q. outside the sphere is a dielectric with polarization p(f) k/r^3er. Determine the electric field at arbitrary point outside the sphere.
Learn more about electric field here: brainly.com/question/14372859
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Hooke’s Law, F = k e
Force = 300 x 0.153 = ..... N
Microwaves at the specific frequency where vibrates water molecules
Or
Infrared waves is the other name for heat