Sound is an example of a mechanical wave. Mechanical waves are the kinds of waves that cannot be propagated without a medium. As such, these waves cannot travel through a vacuum, just like how sound cannot travel through space, since space is a vacuum.
The answer for <span>electromagnetic radiation released during radioactive decay i</span>s C. He
5 km northeast. Left and up would make northeast
Answer:
is from 9 x 107 m/sec to 27 x 107 m/s
