2.09sec
Add them together then divide by three because there are three numbers
Answer:
the average reaction time is 0.25 seconds.
It is absorbed, or can be reflected by clouds, gasses, dust. or is reflected off of Earths surface.
<span>I am pretty sure the correct answer is C.
It makes the most sense.
Please correct me if I'm wrong.</span>
Wave speed = (wavelength) x (frequency)
Wave speed = (3 m) x (15 Hz)
<em>Wave speed = 45 m/s</em>