NeoPets Riddles (Lenny Conundrums) and Answers Here

i think that floats because an egg has air inside.

If you have a tube full of water and you put an egg inside, the amount of water coming out is equal to the volume of the egg that hasnt has air...

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kenshin wrote:

I put in 280,000 since as far as I know in normal sweet water ships displace the amount of water of their actual weight, and they're floating too. *shrugs* I'll never be under the first 10 anyway, so I can't get a better trophy and I don't really care about the peanuts the LC's given out lately. :/

The problem with this is that when testing with water displacement:

If object FLOATS... water displaced=mass
If object SINKS... water displaced = volume....

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ladytellisa wrote:

it is a perfect sphere, and it is an egg, and is floating, which means air is in it as well.... hrm

no this just means that the egg is LESS dense than water

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but that makes it entirely more complicated. that gives us too little info to figure it out. we don't know the volume of the air. and what about the rest of the stuff inside the egg? i think it's simpler than that

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Oh dear, a math one - and a toughie, too!

I'm trying to follow you guys on your calculations and I'm sort of getting it, so please, do go on! I need to learn.

And I have to face the fact that I'll probably have to take math after this summer's vacation.. *sigh*

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zacceus13 wrote:

kenshin wrote:
I put in 280,000 since as far as I know in normal sweet water ships displace the amount of water of their actual weight, and they're floating too. *shrugs* I'll never be under the first 10 anyway, so I can't get a better trophy and I don't really care about the peanuts the LC's given out lately. :/

The problem with this is that when testing with water displacement:

If object FLOATS... water displaced=mass
If object SINKS... water displaced = volume....

not true, mass is measured using a scale. volume is measured by using a formula or by water displacement floating or sinking doesn't apply

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zacceus13 wrote:

kenshin wrote:
I put in 280,000 since as far as I know in normal sweet water ships displace the amount of water of their actual weight, and they're floating too. *shrugs* I'll never be under the first 10 anyway, so I can't get a better trophy and I don't really care about the peanuts the LC's given out lately. :/

The problem with this is that when testing with water displacement:

If object FLOATS... water displaced=mass
If object SINKS... water displaced = volume....

No, no no....

always water displaced= volume

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it probably is 388889 (3, four 8s and one 9) but i'll double check just to make sure

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(280000*100)/72 = 388888
Answer is NEAREST ROUND NUMBER

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But let's say this egg can melt.... if only 72% percent is under water, and it completely melted...... there would be more than 280,000 displaced.

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lol
melted or not, the weight of the egg is the same

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I googled 'displacement of water versus volume' and found this:

http://www.newton.dep.anl.gov/askasci/eng99/eng99446.htm

Look at the SECOND reply, the first one is nonsense.

There is says that the 'displacement of a ship is equal to its weight, which of course must be equal to the weight of the water displaced'.

Doesn't that mean that if we find the weight of the water, we'll know the weight of the egg? Does that help with finding the volume?

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i know but the egg can't melt...and if rounded its 388889 im putting that in because i think this is the first LC i actually figured out on my own!

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darkiaia wrote:

zacceus13 wrote:
kenshin wrote:
I put in 280,000 since as far as I know in normal sweet water ships displace the amount of water of their actual weight, and they're floating too. *shrugs* I'll never be under the first 10 anyway, so I can't get a better trophy and I don't really care about the peanuts the LC's given out lately. :/

The problem with this is that when testing with water displacement:

If object FLOATS... water displaced=mass
If object SINKS... water displaced = volume....

No, no no....

always water displaced= volume

Explain how you could get volume with this method? The entire object needs to sink to get a true volume, being less dense than water *hence the 28% still above water)

If your thought was true, then it would be as simple as taking the given displacement as 72% of the volume... this would be too easy

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MariaWB wrote:

I googled 'displacement of water versus volume' and found this:

http://www.newton.dep.anl.gov/askasci/eng99/eng99446.htm

Look at the SECOND reply, the first one is nonsense.

There is says that the 'displacement of a ship is equal to its weight, which of course must be equal to the weight of the water displaced'.

Doesn't that mean that if we find the weight of the water, we'll know the weight of the egg? Does that help with finding the volume?

Maria, do u speack spanish?
we know the weight of water...
1 litr of water = 1 kilogramo

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*sigh* well i just put my answer in because that seems the most accurate it makes sense doesn't matter what units you have set up a proportion. 72%/280,000 cc=100%/x

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Doesn't that mean that if we find the weight of the water, we'll know the weight of the egg? Does that help with finding the volume?

sorry, weight doesn't equal volume weight incorporates gravity mass doesn't

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darkiaia wrote:

MariaWB wrote:
I googled 'displacement of water versus volume' and found this:

http://www.newton.dep.anl.gov/askasci/eng99/eng99446.htm

Look at the SECOND reply, the first one is nonsense.

There is says that the 'displacement of a ship is equal to its weight, which of course must be equal to the weight of the water displaced'.

Doesn't that mean that if we find the weight of the water, we'll know the weight of the egg? Does that help with finding the volume?

Maria, do u speack spanish?
we know the weight of water...
1 litr of water = 1 kilogramo

Sorry, I'm only 6 months into my first ever spanish lessons, so no =) but I do get that 1 liter of water weighs 1 kg, or 1000 grams.

It also says so in this site http://www.fourmilab.ch/hackdiet/www/subsection1_4_2_0_7.html

1 cm3 weighs 1 gram. So

280,000 * 1 / 1000 = 280 grams for the water displaced.

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i agree, but in this case, and haven't got the size of the sphere...
volume=mass= water out

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MariaWB wrote:

darkiaia wrote:
MariaWB wrote:
I googled 'displacement of water versus volume' and found this:

http://www.newton.dep.anl.gov/askasci/eng99/eng99446.htm

Look at the SECOND reply, the first one is nonsense.

There is says that the 'displacement of a ship is equal to its weight, which of course must be equal to the weight of the water displaced'.

Doesn't that mean that if we find the weight of the water, we'll know the weight of the egg? Does that help with finding the volume?

Maria, do u speack spanish?
we know the weight of water...
1 litr of water = 1 kilogramo

Sorry, I'm only 6 months into my first ever spanish lessons, so no =) but I do get that 1 liter of water weighs 1 kg, or 1000 grams.

It also says so in this site http://www.fourmilab.ch/hackdiet/www/subsection1_4_2_0_7.html

1 cm3 weighs 1 gram. So

280,000 * 1 / 100 = 280 grams for the water displaced.

no no 280,000 cm3=280,000 grams

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