- #1

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If I have a block of styrofoam with a mass of 10g and a density of 0.018g/cm

^{3}

How much of the styrofoam will be submerged?

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- Thread starter Mackanator
- Start date

- #1

- 6

- 0

If I have a block of styrofoam with a mass of 10g and a density of 0.018g/cm

How much of the styrofoam will be submerged?

- #2

- 253

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- #3

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I'm a little bit confused. Can you explain that again more thoroughly?

- #4

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Any floating object displaces its own weight of fluid.

— Archimedes of Syracuse[3]

So the weight of the styrofoam is 10g, to float, it must displace 10g of water

The density of water is 1g/cm^3 so 10g of water has a volume of 10cm^3. That is the volume of water to be displaced by an equal volume of styrofoam, since the block has a 100cm^2 bottom, it will take a height of 1mm to reach the desired volume.

- #5

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Wow, simple. thanks!

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