As shown in the chapter, scallops use jet propulsion to moveBIO from one place to
Chapter 4, Problem 27(choose chapter or problem)
As shown in the chapter, scallops use jet propulsion to moveBIO from one place to another. Their shells make them denser thanINT water, so they normally rest on the ocean floor. If a scallop wishesto remain stationary, hovering a fixed distance above the oceanfloor, it must eject water __ so that the thrust force on the scallopis __ .A. upward, upward B. upward, downwardC. downward, upward D. downward, downward
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