A cork floats on the surface of an incompressible liquid in a container exposed to atmospheric pressure.The container is then sealed and the air above the liquid is evacuated.The cork:
A)sinks slightly
B)rises slightly
C)floats at the same height
D)bobs up and down about its old position
E)behaves erratically

Question

Quizplus · Accepted Answer

The buoyancy of the cork depends on the density of the liquid, which remains unchanged as the liquid is incompressible. Removing air does not affect the liquid's density or the cork's buoyancy, so the cork floats at the same height.

A Cork Floats on the Surface of an Incompressible Liquid