Lake Pend Oreille in northern Idaho is one of the deepest la

Lake Pend Oreille, in northern Idaho, is one of the deepest lakes in the world, with a depth of 350 m in some locations. This lake is used as a test facility for submarines. What is the maximum pressure that a submarine could experience in this lake if the temperature is 10 degrees C? A hypothetical 1 m^3 block of water is lowered from the surface (i.e., at atmospheric pressure) to the lake bottom. What is the % change in the volume of the block of water?

Solution

3)

Pressure = density *g*h = 1000*9.81*350=3433500 pa = 3.4335 Mpa

So pressure at the bottom of Lake = 3.43Mpa