They are known as Secondary Waves. : )
The answer is eukarya. While Eukarya, Archaea, and Eubacteria may share some similarities, the most distinctive feature of eukarya is the presence of a membrane-bound nucleus containing the cell's genetic information. This diverse group includes plants, animals, fungi, and protists (unicellular organisms).
The solution to this is to use the n = c / v equation
Where:
c is the speed of light: 3x10^8; and
The idea that v = m/s
So plug in the m/s for v in the n = c v equation and you will
get:
1.5 = (3 x 10 ^ 8)/ ((4.5m)/s))
Therefore, the time should be 2.25 x 10 ^ -10 seconds.
He just change the placement or country