If the force on the tympanic membrane (eardrum) increases by about1.50 N above the force from atmospheric pressure, the membrane canbe damaged.

When you go scuba diving in the ocean, below what depth coulddamage to your eardrum start to occur? The eardrum is typically8.20 mm in diameter. Take the density of seawater to be equal 1.03x 10^3 kg/m^3

h = ? m

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1. The USS Farragut (DDG-99) Guided Missle Destroyer) displaces9200 long tons (1 long ton= 2240 lbs) of seawater. Assuming theaverage density of seawater surrounding the ship is 1.024 g/mL,calculate the total volume of seawater(in m^3) displaced by theship's hull.

2. A cargo ship of 455 ft. length, 62 ft. beam, and 38 ft. depth(deack to keel) has been loaded so much that is displaces 15,036.75m^3 of seawater (assume a uniform density of 1.024 g/m). What isthe total weight of the cargo ship (in kg) with its present load?If you first calculate the ship's overall volume, what is theship's overall density (in g/mL)? If there was a hull breach, howmuch seawater (in m^3) could she take on before sinking?

3. Your ship is in the middle of the Pacific Ocean, in waters 4500meters deep. While enjoying the day on deck, a breeze picks up atiny grain of quartz sand (0.3 mm diameter, 2.65 g/mL) in your hairand carries it out to sea. If the sand grain is deposited on theocean surface, how long will it take to sink to the ocean floor(assuming a perfectly still ocean with a uniform density=1.024g/mL)?
v (setting)=ï»¿ï»¿ ï»¿(2r^2g(d(particle)-d(fluid))/9u

r=particleradius (m)

g= 9.8m/s^2

d=density (kg*m^-3)

u=(1.17*10^-6 m^2 s^-1)* d(fluid)

4. If the particle in Question 3 were a flake of dandruffinstead (1.035 g/mL), at what depth would the dandruff flake ceaseits descent in a layered ocean like the one dipicted here? How longwill it take for the dandruff flake to reach its final destination?Make sure you choose a meaingful unit of time; a simple algebraicmethod is fine.

1.017g/mL 500m

1.025g/mL 2000m

1.028g/mL 2600m

1.032g/mL 3175m

1.037g/mL 3800m

1.042g/mL 4500m

11.31 .. BIO Compression of Human Bone. The bulk mod- ulus for bone is 15 GPa. (a) If a diver-in-training is put into a pres- surized suit, by how much would the pressure have to be raised in atmospheres) above atmospheric pressure to compress her bones by 0.10% of their original volume? (b) Given that the pressure in the ocean increases by 1.0 X 10* Pa for every meter of depth below the surface, how deep would this diver have to go for her bones to compress by 0.10%? Does it seem that bone compression is a problem she needs to be concerned with when diving?

Need help on this please. Thanks!

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