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A block of Styrofoam and a block of lead are the same size. When dropped in...

A block of Styrofoam and a block of lead are the same size. When dropped in water, the Styrofoam floats while the lead block sinks.

1. Which block displaces more water?
-More information needed
-Same for both
-Styrofoam
-Lead
2. Which block experiences more buoyant force?
-More information needed
-Same for both
-Styrofoam
-Leas
3. The bouyant force on the Styrofoam block must be ________ its weight.
-Greater than
-Less than
-Equal to
-Unrelated to
4. The bouyant force on the lead block must be _________ its weight.
-Greater than
-Less than
-Equal to
-Unrelated to
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Answer #1
  1. Lead is completely submerged. So lead displaces more water.
  2. Lead displaces more water. So lead experiences more buoyant force.
  3. Styrofoam floats. So buoyant force on styrofoam is equal to its weight.
  4. The lead sinks. So buoyant force on lead must be less than its weight.

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