Lee rode a skateboard to school. His velocity changed from 2 m/s east to 5 m/s east in 6 seconds. What was the change in Lee's velocity?

blah

explanation:

bc blah

one part of the electromagnetic spectrum that arrives on earth as solar radiation from the sun is the visible spectrum. wavelengths of the visible spectrum combine to form what we refer to as

answer - d) ultraviolet radiation.

violet /   380–450 nm / 668–789 thz

violet is number 1 in the chart of visible light.