A diver A sends a sound signal into the sea to another diver B, who is at a distance of 3 km. B After how long will that sound signal be heard? (Speed of sound in sea water = 1500 m / s)
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Because v=s/t and hence t=s/v
t = 3000m/1500= 2
Because v=s/t and hence t=s/v
t = 3000m/1500= 2
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