Answer: 0.204 s
Explanation:
The speed of sound [tex]V[/tex] is defined as the distance traveled [tex]d[/tex] in a especific time [tex]t[/tex]:
[tex]V=\frac{d}{t}[/tex]
Where:
[tex]V=1470 m/s[/tex] is the speed of sound in seawater
[tex]t[/tex] is the time the sound wave travels from the dolphin and then returns after the reflection
[tex]d=2(150 m)[/tex] is twice the distance between the dolphin and the object to which the sound waves are reflected
Finding [tex]t[/tex]:
[tex]t=\frac{d}{V}[/tex]
[tex]t=\frac{2(150 m)}{1470 m/s}[/tex]
Finally:
[tex]t=0.204 s[/tex]
