The wave travels at the speed of sound in water:
.
The frequency of the wave is
so we can find its wavelength
by using the basic relationship between frequency, wavelength and speed of the wave:
Answer:
Up And Down
Explanation:
In this case, the particles of the medium move parallel to the direction that the pulse moves. This type of wave is a longitudinal wave. Longitudinal waves are always characterized by particle motion being parallel to wave motion.
Hope this helps..Pls mark as Brainliest!!
Answer:
0.5 hours or 30 minutes
Explanation:
each hour travels 80km
so, time taken= 40/80 hours
= 0.5 hours
= 30 minutes