Blocks Suspended in Water—String Tension
Shown below are six containers that have the same volume of water in them. Blocks of various solids are suspended in the containers by being hung from a supporting rod. The blocks vary in both size and mass. The blocks are made of different materials, but all of the blocks would sink if the strings were cut. Specific values for the masses labeled as Mb and volumes labeled as Vb of the blocks are given in each figure.
Rank these situations, from greatest to least, on the basis of the tensions in the strings. That is, put first the situation that has the greatest tension in the string supporting the block, and put last the situation that has the lowest tension in the supporting string.
Greatest Tension
Least Tension
Or, all of the strings have the same tension.
Or, the tension is zero in all of these strings.
Please carefully explain your reasoning.