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ttc puzzle
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| richard raiban |
im sure some of you have seen this add on the subway recently...
i cant find the answer on the ttc website anywhere but my guess is to add a "hole" which will then make the barrel lighter!
anyone? |
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| dEsidEL |
adding a flashlight would make it lighter too ..
if the barrel has an open top, adding some heat would make some of the water evaporate
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| starsearcher |
a Hole... :toothless
Oh wait you already said that...my bad :haha: :stongue:
great minds think alike |
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| kewlness |
| any substance that has a lesser density than the substance outside of the barrel ;) |
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| crazedcanuck |
| quote: | Originally posted by kewlness
any substance that has a lesser density than the substance outside of the barrel ;) |
WTF??
Read Socrates Theory of Displacement.
If you added anything to the barrel, the amount of spillover water would match the item placed in the barrel, leaving it unchanged. |
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| dEsidEL |
and therefore.. we should add the gravity of the moon
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| DigitalMP |
| quote: | Originally posted by dEsidEL
and therefore.. we should add the gravity of the moon
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well, sice gravity is a force, you would actually be taking the earth's away, since the moon has none. |
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| dEsidEL |
| quote: | Originally posted by DigitalMP
well, sice gravity is a force, you would actually be taking the earth's away, since the moon has none. |
the moon's got mass and it has gravity ..
i shoulda said replace not add
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| Dr. Z |
Since heat is massless, if you were to add it to the barrel, it would lose mass since some of the water would evaporate.
If you can't add heat because its not 'matter', then there is nothing that you could add which is matter that would cause it to lose weight
Now if you are allowed to play with words, then adding a hole would work. Also, adding air or syrofoam would work since its less dense than water, and we're assuming the strofoam or air is being forced down into the barrel which causes the water to flow over the top and pour out. Alot of assumptions there. |
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| DJ_Science |
| A hole or heat as I think the barrel is open at the top. |
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| DJ_Science |
| quote: | Originally posted by crazedcanuck
WTF??
Read Socrates Theory of Displacement.
If you added anything to the barrel, the amount of spillover water would match the item placed in the barrel, leaving it unchanged. |
the volume of water displaced would equal the volume of the added object, not the mass. If you added a ligher obejct and let the spill over go, the over all mass would decrease. |
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| Dr. Z |
| quote: | Originally posted by DJ_Science
the volume of water displaced would equal the volume of the added object, not the mass. If you added a ligher obejct and let the spill over go, the over all mass would decrease. |
^
You gotta be careful, the lighter object will submerge only until the equal amount of water in volume was displaced to equal the mass of the object. So the amount of water which spills over is just the mass of the object placed on top, which results in a zero net change in mass. |
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