A diver moves horizontally from the underside of a bridge structure (position 1)

Question

A diver moves horizontally from the underside of a bridge structure (position 1) to open water (position 2). Ignoring effects like currents in the water, what pressure change will the diver sense between positions? A. pressure increases from 1 to 2 because the bridge keeps the atmosphere from pushing down on the water at position 1 B. pressure decreases from 1 to 2 because the weight of the bridge pushes down on the water at position 1 C. pressure stays the same because it is only a function of depth D. pressure may increase or decrease depending upon water properties like density

Explanation / Answer

Pressure decreases from 1 to 2 because the weight the bridge is adding pressure at 1. So correct choice is B. If there was no bridge, pressure would have been same at same depth.

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