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interesting math/physics questions

 
 
Reply Mon 6 Feb, 2006 02:52 pm
got this one in physics class.

suppose you have a rather large room, however it isn't a perfectly flat rectangular room... there are objects such as a couple solid desks, bulkheads, solid tables (meaning no underneath)...etc.

now say you have a volleyball, and you found the diameter through the circumfrance. the question is, what is the maximum amount of these balls which can fit into this room? Keeping in mind that the balls sink downwards when stacked in 'pyramide' form (which would be the only way of stacking to acheive the maximum amount of balls)

if anyone has a good foundation on math, how would u solve this?
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Type: Discussion • Score: 1 • Views: 739 • Replies: 5
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engineer
 
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Reply Mon 6 Feb, 2006 06:30 pm
Hexagonal Closed Packed Solution
First, check out this web site for information about packing spheres. Then I would find the volume of the room excluding obstructions, divide by the volume of the ball and multiply by 0.74.
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Mandso
 
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Reply Mon 6 Feb, 2006 11:12 pm
i'd lookin the textbook or on the internet - teachers are lazy, they pinch stuff
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markr
 
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Reply Tue 7 Feb, 2006 02:00 am
The positions of the solid obstacles will affect the answer as well.
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Abu
 
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Reply Sun 19 Feb, 2006 12:50 am
using the obstacles to support the pyramid would be a good idea
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Red888
 
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Reply Sun 19 Feb, 2006 01:45 am
Thats extreamly hypothetical. What are the size of the irregular objects, where are they situated etc. You'd better ask someone who could work with imaginary numbers. I don't know.
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