Puzzler 3

A freighter carrying a cargo of iron ore is in a water tight lock of the Panama canal. While there, the
crew mutinies and throws the cargo overboard into the lock. What happens to the water level in the
lock as a result of this? Does it rise, does it go down, or does it stay the same?

I think I know. give the others a chance reply first. Archimedes.

I think the water table would go down as the size of the ship would
displace more water. So contrary to popular opinion it is the size of
the ship and not the motion of the ocean. Kirk

Stay the same relative to the bottom of the lock being filled with
WEIGHT LOL


Jason

stays the same. The water displacemnt is constant.
John

You lose. You get nothing. Good day sir!

The best line from Willy Wonka and The Chocolate Factory.

Thanks...I needed that today!!

Dave

AH!!!!! The level lowers. The iron ore displaces more wwater when in
the barge or ship than when in the water. Iron ore weighing more
than water per volume.
John

I think so too, John.
Had this been wrong, though, you would have had a good chance on
your third answer, lol (no offense meant). sin

LOL, It was a multiple choice question. Third choice would of been
right if first two were wrong.
John
Ps: Unless all three choices given had been wrong.

Yes, it seems counter-intuitive, but he was correct.

And as a follow-up, what would happen to world water levels if all the ice in the Arctic (but
nowhere else) melted? Answers with straightforward explanations please, I'm not an expert
on climate change.

north or south pole? It makes a difference. On the south pole a lot of
ice is not 'floating'. sin

Arctic = North Pole. This isn't much of a puzzle, but some people still get it wrong.

my mistake. I hate the word antarctic.
so, no land, floating ice and permafrost. I would think that if that elts
(and nothing else changes) the sea level remains unchanged. Once
the ice has melted into water, it displaces as much water as the rest
around it. While it is still ice, likewise, the lower density is reflected in
the fact that part is about sea level. As an indicator (no proof): sea
level in winter and summer are equal.

But , even if this is right in theory (no too sure about that), I think it
would change a lot if it happened, and sea level would increase
dramatically.

sin