2. Refer to the diagram below. There are two blocks of wood, Block A and Block B, which are floating in a tub of water (left diagram). The two blocks are made of the same type of wood and are the same size and shape. Half of each block rises above the water line. You remove the blocks from the tub of water. You slice off the top half of Block A and put the sliced half onto the top of Block B as illustrated in the right diagram. _______2a. Predict what will happen to both blocks as you place them back into the tub of water. Will the blocks rise or sink isostatically compared to their original positions? a. A will rise, B will sink; This is because half of A must rise above the water line and B will sink from the additional weight of A added on top of it. b. A will rise, B will rise; This is because half of A must rise above the water line and B will rise from the added thickness of A. c. A will sink, B will rise; This is because A is now half as thick and it will need to sink and B will rise because of the added thickness of A. d. A will sink, B will sink; This is because A is now half as thick and it will need to sink and B will sink because of the added weight of A added on top of it.

Q&A Education