Another Anchor
Ok,this time there is an anchor 80 feet below the surface of a lake being held by air-filled balloons in such a way that it will not rise nor fall.If you were to force the anchor down to the 100 foot mark,what will happen?
posted by Knightmare at
9:04 PM
6 Comments:
the balloons will shrink because of the pressure, the anchor will drop even deeper because the balloons are displacing less water. I suspect it will continue to drop and the balloons continue to shrink till the anchor reaches the bottom.
kick
To put some numbers on the thing:
At 100 ft, the pressure is 125% (100/80) of the pressure at 80 ft. The balloons therefore shrink to 80% (80/100) of their size.
If the balloons exactly balance the anchor at 80 ft, at 100 ft they will only provide 80% of the lift.
The assemblage will sink.
The equillibrium at 80 ft is a very unstable one. Any significant updraft or downdraft will result in the assemblage rising or sinking uncontrollably.
and the winner is...well i guess it's a tie
Ragknot got her first but Ross was all mathy and stuff
nothing is gonna happen as the anchor wont touch the balloon at all
I was thinking the air balloons were attached with a 80 foot rope and was being held up by the balloons on the waters surface.
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