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Hey I need some help with this problem from my physics homework.Thanks! It is Ph

ID: 1724333 • Letter: H

Question

Hey I need some help with this problem from my physics homework.Thanks! It is Physics (8th) Cutnell.
Chapter 11 problem 26. It reads as follows

-If a scuba diver descends too quickly into the sea, the internalpressure on each eardrum remains at atmospheric pressure while theexternal pressure increases due to the increased water depth. Atsufficient depths, the difference between the external and internalpressures can rupture an eardrum. Eardrums can rupture when thepressure difference is as little as 35 kPa. What is the depth atwhich this pressure difference could occur? The density of seawateris 1025 kg/m3.

Explanation / Answer

We know that the pressure difference    P = gh therefore the depth of the water h = P / g = 35kPa /(1025 kg/m3 *9.8m/s2 )                                                   = 3.48 m