4. how much time would it take for an airplane to reach its destination if it traveled at an average speed of
780 kilometers/hour for a distance of 4,700 kilometers? what is the airplane's speed in miles/hour?
hint: show how you convert kilometers into miles for your calculation (1 mile = 1.6 km)
looking for which variable:
solution

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.