Use the graph or the formula for speed to answer que 7. A trucker made a delivery to a town 180 km from
his start point. The graph shows the time and
distance for the trip. During which part of the trip
was the trucker driving 55 km/h?

it would be kevlar ^^

54 degrees incident angle = reflected angle

angle is from normal turned to line of ray

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.