SOLUTION: A ship using sound-sensing devices above and below water recorded a surface explosion 39 seconds sooner on its underwater device than on its above-water device. If sound travels in

Question 38619: A ship using sound-sensing devices above and below water recorded a surface explosion 39 seconds sooner on its underwater device than on its above-water device. If sound travels in air at about 1100 feet per second and in water at about 5000 feet per second, how far away was the explosion?
Answer by Paul(988) (Show Source): You can put this solution on YOUR website!
Letting t be the time:
Equation:
1100t=5000(t-39)
-3900t=-195000
t=50
Hence, the explosion is 50ft far away.
Paul.
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