g A car is traveling east at 15.0 m/s when it turns due north and accelerates to 30.0 m/s, all during a time of 5.00 s. Calculate the magnitude of the car's average acceleration (in m/s2).

none, its a machine

the duration of a photographic flash is related to an rc time constant, which is 0.100 μs for a certain camera.

snell's law

refractve index = sin incidence / sin refraction

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.