Get premium membership and access questions with answers, video lessons as well as revision papers.

A pulse-echo sounder is used by fishing boat to locate a shoal of fish in water. The sounder sends sound of frequency 21KHz and wavelength...

      

A pulse-echo sounder is used by fishing boat to locate a shoal of fish in water. The sounder sends sound of frequency 21KHz and wavelength of 7.5cm. if the echo is received after 0.4seconds, determine how far the shoal of fish is from the base of the boat.

  

Answers


sharon
pic26920191654.png
sharon kalunda answered the question on September 26, 2019 at 13:54


Next: Sketch a graph of displacement against time for a transverse wave of frequency of 50Hz of at least two cycles with amplitude 2cm.
Previous: The following diagram shows the equilibrium price of good X as set by the forces of demand and supply. Suppose the government sets the maximum price...

View More Physics Questions and Answers | Return to Questions Index


Learn High School English on YouTube

Related Questions