The bulk modulus for bone is 15.0 GPa. Part A If a diver-in-training is put into

Question

The bulk modulus for bone is 15.0 GPa. Part A If a diver-in-training is put into a pressurized suit, by how much would the pressure have to be raised (in atmospheres) above atmospheric pressure to compress her bones by 0.130% of their original volume? = ? atmospheres Part B Given that the pressure in the ocean increases by 1.0x10^4Pa for every meter of depth below the surface, how deep would this diver have to go for her bones to compress by 0.130% ? = ? m Part C Does it seem that bone compression is a problem she needs to be concerned with when diving? Yes or No

Explanation / Answer

bulk modulus is defined by: K = -V dP/ dV where P is the pressure and V is the volume. So the pressure difference is: delta P = -K deltaV / V They give you k. They give you deltaV/V (which is negative for compression). Plugnchug. Don't forget to convert the GPa to atmospheres. b) delta depth = delta pressure / (dP / d(depth)) You just calculated the required pressure change. They give you dP / d(depth). Plugnchug......

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