A search boat uses a signal of frequency 6.0 x 104 Hz to detect a sunken ship directly below. Two reflected signals are received; one...

      

A search boat uses a signal of frequency 6.0 x 104 Hz to detect a sunken
ship directly below. Two reflected signals are received; one after 0.1
seconds from sunken boat and the other after 0.14 seconds from the sea
bed. If the sea bed is 98 m below the boat, determine:-
(i)The speed of the signal in water.
(ii)The depth of the sunken ship below the boat

  

Answers


gregory
? Distance moved by sound from sea bed = 98 x 2 m
? V = 98 x 2
0.14
? = 1400 m/s
(ii)The depth of the sunken ship below the boat
? Distance = v x t
? = 1400 x 0.10/2
? = 70 m
gregorymasila answered the question on February 7, 2018 at 13:10


Next: The half-life of an element X is 3.83 days. A sample of this element is found to have an activity rate of 1.6 x 103...
Previous: List and describe briefly FOUR potential benefits, the company is likely to experience in the adoption of CAD.

View More Physics Questions and Answers | Return to Questions Index


Exams With Marking Schemes

Related Questions