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#61 John

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Posted 20 December 2006 - 12:03 AM

GOOGLE IT!!! It IS 4 days.

And I'm sure I am correct on the second one.

EDIT:

Just googled the second problem, I admit I am wrong.

#62 paddyb67

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Posted 21 December 2006 - 08:36 PM

mate,you can find some amount of crap through google if you want, you dont seem to realise its not always 100% right. ive explained that its 1.5 days, that is the answer. who cares if you can find a web site(s) that says otherwise, it doesnt change what the answer is.

#63 John

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Posted 21 December 2006 - 08:40 PM

so my maths teachers are also incorrect?

As well as proven mathematical rules?

#64 Blondie

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Posted 21 December 2006 - 10:30 PM

It's cute how few threads seem to contain no flaming whatsoever these days, regardless of who's right or wrong.

Anyway, another question for you my dad gave me once. I have no idea if it's hard or not, but I didn't get it the first time.

So there's a ship in port, and they're filling oil or something onto tank on either side of the ship. Unfortunately, they screwed up, and oil was only going into one tank, causing the ship to tip to the side rather dangerously. So they stop filling it and think for a sec. What are they going to do to stop the ship from capsizing?
-Blondie.

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#65 John

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Posted 21 December 2006 - 10:49 PM

They could do many things, here is a few.

1) (the most obvious) Fill the other tank.
2) Don't let the boat sail.
3) Put a few fat guys on the other side of the tanker.
4) Let it sail dangerously.
5) Take smaller amounts of oil and make multiple journeys.

Can't be bothered listing more

#66 Blondie

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Posted 21 December 2006 - 10:57 PM

Nope. wink.gif That's what I thought at first. But if you did your first option, the ship would sink. And no Google John.
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#67 paddyb67

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Posted 21 December 2006 - 11:10 PM

john mate, gonna just listen for a second. the problem is not a maths one, it is about thinking laterally. the point is that its not the same kind of question like if it takes 1.5 builders to build 1.5 houses in 1.5 days, how long does it take 6 builders to build 6 houses. its seeing if you can think laterally (obv you cant) and the whole point is that you hav e to realise there is a gestation period for laying eggs and therefore a standard unchanging time (1.5 days) for 1 hen to lay 1 egg.

#68 John

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Posted 22 December 2006 - 12:00 AM

QUOTE(Blondie @ Dec 21 2006, 10:57 PM) View Post

Nope. wink.gif That's what I thought at first. But if you did your first option, the ship would sink. And no Google John.


Oil is less dense than water, so the tanker won't sink, no?

QUOTE(paddyb67 @ Dec 21 2006, 11:10 PM) View Post

john mate, gonna just listen for a second. the problem is not a maths one, it is about thinking laterally. the point is that its not the same kind of question like if it takes 1.5 builders to build 1.5 houses in 1.5 days, how long does it take 6 builders to build 6 houses. its seeing if you can think laterally (obv you cant) and the whole point is that you hav e to realise there is a gestation period for laying eggs and therefore a standard unchanging time (1.5 days) for 1 hen to lay 1 egg.


Gestation has nothing to do with laying eggs.

And for the record I am not "mate."

Further more, I am not wasting my time arguing with the likes of you.

#69 The Wedge Effect

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Posted 22 December 2006 - 12:08 AM

No. The combined mass of the oil, and the density of the tanker, as well as the instability around the centre of mass of the tanker would cause it to sink, as the AVERAGE density of the tanker would increase beyond that of the water when it tips over to the side. That would cause it to sink. I don't think trying to fill the other hold with oil would help, as the boat is on its side. You would need to exert a force larger than the weight of the tanker in the upward direction as well as fill it up to tip it back to its original position. Basic fluid dynamics in effect.

#70 John

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Posted 22 December 2006 - 12:13 AM

Average density would still be lower than that of water, as how else would real life tankers float? especially the ones unassisted by those air bag type things.

#71 Untouchable

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Posted 22 December 2006 - 12:18 AM

Sorry to butt into this discussion.
As it is so near to Christmas (the season of goodwill and all that) may I suggest you use some of the oil from the boat and some of the eggs from the chickens (obviously not free range chickens) and make a nice big omlette.

#72 The Wedge Effect

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Posted 22 December 2006 - 12:30 AM

QUOTE(John @ Dec 22 2006, 12:13 AM) View Post
Average density would still be lower than that of water, as how else would real life tankers float? especially the ones unassisted by those air bag type things.


Again, basic fluid dynamics. They float because the average density when the boat is upright is less than that of water. Go look up Archimedes' Principle. However, the forces acting on the boat changes when the boat tips to its side. It becomes unstable, and on its side, the density increase because more weight is acting down on the water. Anyway, it's christmas and I can't be arsed arguing my side using archimedes' principle. tongue.gif


#73 dondon

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Posted 22 December 2006 - 12:50 AM

I think they would do what they do in James and the Giant Peach, catch a big load of birds, tie them on to the side of the boat and make them fly places.

#74 John

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Posted 22 December 2006 - 11:41 AM

QUOTE(The Wedge Effect @ Dec 22 2006, 12:30 AM) View Post

QUOTE(John @ Dec 22 2006, 12:13 AM) View Post
Average density would still be lower than that of water, as how else would real life tankers float? especially the ones unassisted by those air bag type things.


Again, basic fluid dynamics. They float because the average density when the boat is upright is less than that of water. Go look up Archimedes' Principle. However, the forces acting on the boat changes when the boat tips to its side. It becomes unstable, and on its side, the density increase because more weight is acting down on the water. Anyway, it's christmas and I can't be arsed arguing my side using archimedes' principle. tongue.gif


As you fill the second tank up, the forces will balance out, and the bouyancy force will not need to be argued.

#75 paddyb67

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Posted 22 December 2006 - 12:54 PM

get it up ye john

#76 John

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Posted 22 December 2006 - 01:45 PM

QUOTE(paddyb67 @ Dec 22 2006, 12:54 PM) View Post

get it up ye john


You have just proven why I'm not wasting my time arguing with you.

As you have just shown that you have the mentality of a delinquent, even though you have the grades to go to Oxbridge, and the grasp of the English language only a "NED" would show.

#77 dondon

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Posted 22 December 2006 - 01:53 PM

QUOTE(John @ Dec 22 2006, 11:41 AM) View Post

QUOTE(The Wedge Effect @ Dec 22 2006, 12:30 AM) View Post

QUOTE(John @ Dec 22 2006, 12:13 AM) View Post
Average density would still be lower than that of water, as how else would real life tankers float? especially the ones unassisted by those air bag type things.


Again, basic fluid dynamics. They float because the average density when the boat is upright is less than that of water. Go look up Archimedes' Principle. However, the forces acting on the boat changes when the boat tips to its side. It becomes unstable, and on its side, the density increase because more weight is acting down on the water. Anyway, it's christmas and I can't be arsed arguing my side using archimedes' principle. tongue.gif


As you fill the second tank up, the forces will balance out, and the bouyancy force will not need to be argued.



I don'y know about physicsy stuff, but common sense would say if you filled up the second tank whilst the ship is on its side its just going to make it sink more, its not going to make it magically jump out the water and onto the right way up.

#78 John

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Posted 22 December 2006 - 01:56 PM

As you fill the second tank up, the forces acting on each side are going to eventually create an equilibrium, thus the tanker will not sink or capsize.

#79 The Wedge Effect

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Posted 22 December 2006 - 03:49 PM

That would only happen if there was a force acting upwards on the tanker to push it back to its original position. On its side, it's unbalanced, and the forces won't be in equilibrium, until it sinks and hits the bottom. tongue.gif

#80 paddyb67

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Posted 22 December 2006 - 05:48 PM

haha, im a ned going to oxford, yas.



btw,just let the oil spill out of the tank an the ship will right itself.





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