Question

If you were in a boat and wanted to know how deep the water was, you could use SONAR. Sound waves are emitted from the surface of the ocean and travel through the water at 1450 m/s. The ocean bottom is 1630 m below the surface. Determine the amount of time that passes before the sound waves are reflected back to the surface. Don't get tricked by this one. 0 1.1 sec 04.1 sec 0 2.2 sec 0.76 sec O 12.3 sec O 6.6 sec O 1.9 sec

Answer 1

Given, Depth of water D = 1630 m Speed of sound v=1450 mis How, we know that speed & found in dwater given as V = = 20 T T = timer tween by the wave to get reflect baur - T-20 V T= 2X1630 1450 2.2 T = 2.2 Teacher's Signature......