boat quay conundrums

Mar 29, 2007 14:32

1. Take the earth and an orange. Around each is a rope that runs around its circumference ( Read more... )

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Comments 10

drag0nette March 29 2007, 11:05:01 UTC
1. i have no idea whatchu talkin' 'bout.

2. depends on whether the ice has air trapped within. if yes, the level of water may decrease, depending on how far the ice cube was sticking out above the water's surface. if it sticks out at the same volume as the air trapped within, the water level will remain the same. if it sticks out less than the volume of air, the water level will decrease. if it sticks out more than the volume of air, the water level will increase.

if no air is trapped within and the ice cube isn't sticking out, the level of water will remain the same.

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okami_kun March 30 2007, 04:59:53 UTC
for (2), have you considered the fact that water is unique in that its volume increases once it changes to a solid state (ice)?

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drag0nette March 30 2007, 05:03:55 UTC
no. :p i is no scientist. :)

so what's the model answer?

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okami_kun March 30 2007, 07:44:59 UTC
it was explained to my inebriated self (at the time) that
a) the volume of ice is bigger than the volume of water for the same mass of water/ice
b) ice is less dense than water - hence it floats with a bit sticking out

therefore when the icecube melts, there should be no change in the water level

if anyone has a better explanation i'd like to hear it - like i said - this was the one i accepted whilst under the influence =)

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anonymous March 29 2007, 16:41:53 UTC
i know this one!!!!! i think.

1) the Earth's rope.
2) it decreases. cause water is less dense when its in its solid state (ice form)occupying more space.

candice ( formely sapphire_sea)

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okami_kun March 30 2007, 05:01:19 UTC
for (1), have you considered working this out mathematically? the answer might surprise you.(HINT: hearken back to primary 6 math...)

for (2), see previous response above

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