Explanation:
by finding the distance between two successful crest
Answer:
I belive it would be ture
Explanation:
It's been a while since I learned this but I think that is right.
Explanation:
13 cmHg (centimeters of mercury) is the pressure at the bottom of a column of mercury 13 cm deep. It is the equivalent of about 17.3 kPa or 2.5 psi.
D) waves are used to transmit the rail signal though the air. these waves are encoded at different frequencies for different stations
