- #1
semc
- 368
- 5
A bell of diameter 3m and bulk modulus of 14x1010N/m2 is toss into the ocean. By how much did the diameter decrease as it sank to a depth of 10km? The bell is assumed to be a sphere of diameter 3m.
Well o what i did was to calculate the pressure at the depth of 10km so P=Po+[tex]\rho[/tex]gh which gives me P=1.0135x105+1000x9.81x10000=9.82x107. Then Bulk modulus=[tex]\frac{P}{V/Vi}[/tex] where V is change in volume and Vi is the initial volume. This gives me change in diameter to be 0.267m however the answer provided is 0.722mm What is wrong ??
Well o what i did was to calculate the pressure at the depth of 10km so P=Po+[tex]\rho[/tex]gh which gives me P=1.0135x105+1000x9.81x10000=9.82x107. Then Bulk modulus=[tex]\frac{P}{V/Vi}[/tex] where V is change in volume and Vi is the initial volume. This gives me change in diameter to be 0.267m however the answer provided is 0.722mm What is wrong ??