A 2-ft outside diameter pipeline lying on a sand seabed moved during a hurricane event. Determine the wave height for a 15-s period wave needed to just move the concrete-coated steel pipe located in 180 ft of water. The current normal to the pipeline is assumed to be 0.8 kts. Use linear wave theory. Crude oil with a specifi c gravity of 0.86 is inside the pipeline. The thickness of the steel pipe is 0.25 in and the thickness of the concrete coating is 1 in.

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