1. The problem statement, all variables and given/known data A sphere is enclosed in a bell jar half filled with water. The sphere floats. Air is pumped out to create a vacuum above the water inside the bell jar. Will the sphere float in the same way, float better or will it sink? 2. Relevant equations - 3. The attempt at a solution My guess is that since there are no air particles pushing down on the water surface the sphere should sink more maybe not completely. Is this correct?