) The speed of an electromagnetic wave in vacuum depends on a) the amplitude of the electric field, but not on the amplitude of the magnetic field. b) the amplitude of the magnetic field but not on the amplitude of the electric field. c) the amplitude of both fields. d) the frequency and wavelength. e) none of the above.

insects!

explanation:

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr

the aurora is formed when charged particles emitted from the sun during a solar flare penetrate the earth's magnetic shield and collide with atoms and molecules in our atmosphere. these collisions result in countless little bursts of light, called photons, which make up the aurora.

auroras are generated by charged solar particles hitting molecules in earth's atmosphere. this usually happens in high latitudes, because our planet’s magnetic field tends to funnel these particles toward the poles. that’s why it can be experienced in northern ohio.