Homework Help: Physics

Posted by Anonymous on Thursday, November 15, 2012 at 8:04pm.

The maximum pressure most organisms can survive is about 1000 times atmospheric pressure. Only small, simple organisms such as tadpoles and bacteria can survive such high pressures. What then is the maximum depth at which these organisms can live under the sea (assuming that the density of seawater is 1025 kg/m^3)?

Physics - Jennifer, Friday, November 16, 2012 at 11:04am
P(water) = P0 + d*g*h

where P is the pressure of water, P0 is the atmospheric pressure of the air at the surface of the water, d is the density of water, g is the constant acceleration due to gravity, and h is the depth of the water beneath the surface

1000*P0 = P0 + 1025*9.8 * h

look up P0, and solve for h in the appropriate units

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