1. An object oscillates under simple harmonic motion. It takes the objects 250-sec to
move from one position of maximum acceleration to the next position of maximum
acceleration. The object travels 400-m between these positions. Assuming that the
clock starts when the object is at maximum displacement,
a write an equation for the velocity and the acceleration of the object as a position
of time.
b. If the clock is started when the object is at maximum negative velocity, write an
equation for the position of the object as a function of time.

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.