Part A A sailor strikes the side of his ship just below the surface of the sea. He hears the echo of the wave reflected from the ocean floor directly below 4.5 s later. How deep is the ocean at this point? Assume the bulk modulus of water is Bwater = 2.0 x 10" N/m". The density of sea water is 1.025 x 103 kg/m Express your answer to two significant figures and include the appropriate units. HA FOE ? Value Units Submit Request