Question

(a)

When a wooden box is placed in a pail of water, it floats with 55% of its height above the waterline. When this box is then placed in a pail full of olive oil, it floats with 46% of its height above the oil.

What is the density of the olive oil?

What is the density of the box?

(b)

Crater Lake in Oregon is the deepest lake in the United States, with a maximum depth of 655 m. The density of freshwater is 1.00 ✕ 10³ kg/m³.

If the air pressure above the lake, which has a surface altitude of 1800 m, is 8.00 ✕ 10⁴ Pa, what is the absolute pressure at the bottom of the lake? --> 6.51e+06

What is the force of the lake's water on each window of a submarine near the lake bottom if each of its circular windows has an area of 132 cm²? (Enter the magnitude.)

Answer 1