In a submarine fitted with SONAR, the time interval between the gener – McqOptions

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1.	In a submarine fitted with SONAR, the time interval between the generation of an ultrasonic wave and the receipt of its echo is 200s. What is the distance of the enemy submarine? The speed of the sound in water is 1.450km/s.
A.	2.811 km
B.	112.5 km
C.	145 km
D.	100 km
Answer» D. 100 km

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