The time would it takes a sound wave to travel 9000 m will be 6 sec. The formula for the distance is used in a given problem.
It is defined as the time elapsed to travel a certain distance with a specified velocity. It is denoted by t . Its unit is sec.
The given data in the problem is;
v is the average speed of sound in water = 1500 m/s
t is the time period
d is the distance traveled = 9000 m
The time period is found as;
[tex]\rm d = v_{avg} \times t \\\\ t= \frac{d}{v_{avg}} \\\\ t= \frac{9000}{1500} \\\\ t=6 \ sec[/tex]
Hence the time would it takes for a sound wave to travel 9000 m will be 6 sec.
To learn more about the time period refer to the link;
https://brainly.com/question/569003