Image from a far away object formed by a concave mirror
I have no idea but this is my best guess as a sophomore in college
The frequency of a wave is the number of waves that passes through a point in a certain time. The less waves that pass in a period of time the lower the frequency of the wave. The more waves that pass in a period of time the higher the frequency of the wave. When measuring wave length the time period used is usually one second.
136lb?? I'm so confused rn!! I'm super sorry!!
True because school doesn't dictate what job you want in the future