Homework Help: Physics, science

Posted by Sav on Tuesday, January 8, 2013 at 2:43pm.

A sonar generator on a ship produces periodic ultrasonic waves at a frequency of 2.2 MHz. The wavelength of the waves in seawater is 5.310-4 m. When the generator is directed downward, an echo is received 15.2 s later. How deep is the ocean in m?

Physics, science - Steve, Tuesday, January 8, 2013 at 3:20pm
frequency(1/s)*wavelength(m) = speed(m/s)
speed(m/s)*time(s) = distance

so

(2.2*10^6/s)(5.3*10^-4 m)(15.2s) = 17723m

so, the depth is half the distance traveled, or 8862m

Answer this Question

Related Questions

physics - waves on the surface of a liquid are observed to have a wavelength of ...
Science - Does increasing the frequency of a wave also increase its wavelength? ...
science - Which of the following travels the fastest? sound waves in air, sonar...
Physics - How long is one-quarter wavelength at each of the frequency of 1 MHz, ...
physics - (a) Two microwave frequencies are authorized for use in microwave ...
chemistry please help - The FM band of radio waves are measured in megahertz (...
physics - What is the wavelength of the radio waves broadcast by an FM radio ...
physics - An underwater sonar system uses mid-wavelength sound waves. These ...
Waves (Physics) - I have trouble with these 2 problems, can anyone assist me to ...
Science - I need to check my answers!! Which of these is not in the family a. ...

For Further Reading

First Name:
School Subject:
Answer: