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capooza

  • 3 years ago

If an ice cube is placed in a cup of water and 15% of it is above the water, what is the approximate density of the ice cube (assuming the density of water is 1000 kg/m^3)? And how much did the water expand as it froze? Explain how you determined this.

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  1. imron07
    • 3 years ago
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    |dw:1351477183355:dw|

  2. imron07
    • 3 years ago
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    |dw:1351477287369:dw|

  3. imron07
    • 3 years ago
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    So, to find \(\rho_{ice}\) the two forces must be equal since ice is in static equilibrium.

  4. capooza
    • 3 years ago
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    So I should set them equal to each other? And what is V standing for here?

  5. imron07
    • 3 years ago
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    Volume of the ice cube. It'll cancel each other, so don't worry.

  6. capooza
    • 3 years ago
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    Oh, ok. So I do set them equal to each other?

  7. imron07
    • 3 years ago
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    Yes

  8. capooza
    • 3 years ago
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    So it ends up being .85 * 1000 kg/m^3?

  9. imron07
    • 3 years ago
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    It seems correct. Rho of ice is less tha rho of water.

  10. capooza
    • 3 years ago
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    Alright, thanks a lot, I think I've got the rest!

  11. imron07
    • 3 years ago
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    np :)

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