The diagram below depicts a U-shaped tube open from both ends. The vertical tube on the left has a diameter of 10 cm, and the vertical tube on the right has a diameter of 2.5 cm. The U-shaped tube is filled with water. There is a disk on the left side of the tube that can float on water, with the water always maintained at the bottom of the disk. As shown in the diagram, the mass of the disk itself would contribute to a 4 cm height difference in water level between the left and right tubes. What is the maximum amount of mass you can place on top of the disk so that water would not spill from the right side?

The diagram below depicts a U-shaped tube open from both ends. The vertical tube on the left has a diameter of 10 cm, and the vertical tube on the right has a diameter of 2.5 cm. The U-shaped tube is filled with water. There is a disk on the left side of the tube that can float on water, with the water always maintained at the bottom of the disk. As shown in the diagram, the mass of the disk itself would contribute to a 4 cm height difference in water level between the left and right tubes. What is the maximum amount of mass you can place on top of the disk so that water would not spill from the right side? Give your answer in grams without any decimal places. 18 cm 16 14 12 10