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I believe we are working on the same wkst... found the following from http://science-mathematics.com/Chemistry/201109/12779.htm

1. The fatter person floats.

(30% floats closer to the surface than 10%)

2. Lead weighs 207.2 g/mol.

Iron weighs 55.874 g/mol.

Aluminum 28.98 g/mol

Titanium 47.867 g/mol

Aluminum is lightweight. Titanium isn't very dense and is resistant to corrosion. This is very important when you think about the exposure to water.

3. The Density of copper is 8.94 gm/cm^-3

Brass alloys typically have densities in the range of 8.4 to 8.75 gm/cm^3

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11y ago
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Q: Would you expect a person who has 30 percent body fat to float higher or lower in the water than a person of the same mass who has 10 percent body fat?
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