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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

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