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Ball Bearing Box

Science brain teasers require understanding of the physical or biological world and the laws that govern it.

 

Puzzle ID:#3153
Fun:*** (2.67)
Difficulty:** (1.63)
Category:Science
Submitted By:204_blaze_41****
Corrected By:brainyboy615

 

 

 



Suppose you have an open topped box that is 5cm x 5cm x 5cm. (capacity: 125 cubic centimetres) Inside the box is a steel ball bearing that is 25 cubic centimetres in size. Next to the box is a two-liter pail filled with mercury. How many cubic centimetres of mercury would you have to pour into the box to completely submerge the ball bearing?




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Comments

pusandave
Apr 05, 2002

Yes that is true, but by putting 100 CCs in the box with bearing you can close the lid and completely submerge it. The cube would then be completely full.
emilymonkeymaia
Apr 12, 2002

Good one!
cathalmccabe
Apr 17, 2002

You could push it under
Lilman_220
Apr 17, 2002

Blaze are you a cience wiz or something?!?!
Lilman_220
Apr 17, 2002

^science
chamber44
Apr 26, 2002

I want to know where pusandave got this imaginary "lid" that wasn't even in the problem.
jimmh22
May 06, 2002

I realy enjoyed this one
(user deleted)
Aug 14, 2002

Nice...Very Nice... But Cathal...Push it under, feel the quicksilver diffuse through your skin.
CCat20*us*
Oct 06, 2002

If you push it under you run the risk of ending up like Jonny Tremain.
boodlerAgb*
Nov 03, 2005

Surely the ball floats "on" the mercury rather than "in" it!
achnid*us**
Dec 31, 2005

um he never said "push it under with your finger" you can use almost any object to push it under.



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