SOLUTION: A small raft is floating in a small wading-pool. There are twenty heavy concrete blocks on the raft. A small child pushes the blocks off the raft and into the water. As a result,

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Question 1133194: A small raft is floating in a small wading-pool. There are twenty heavy concrete blocks on the raft. A small child pushes the blocks off the raft and into the water.
As a result, would the water level:
A. Rise
B. Fall
C. Stay the same
D. Do any of the above depend on how dense the blocks are
Answer by Alan3354(69443) About Me  (Show Source):
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A small raft is floating in a small wading-pool. There are twenty heavy concrete blocks on the raft. A small child pushes the blocks off the raft and into the water.
As a result, would the water level:
A. Rise
B. Fall
C. Stay the same
D. Do any of the above depend on how dense the blocks are
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Assuming the water is deeper than the height of the blocks?
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The water level would fall, if "heavy concrete" means denser than water.
Floating, they displace their weight of water. submerged, they displace their volume.
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D. Do any of the above depend on how dense the blocks are
If the density of the blocks is less than that of water (--> they float), then the level of the water would increase.