1. When solids are dissolved in a liquid the solid take up the spaces between the liquid molecules. If I have 2 containers and I dissolve 50grams of salt in one and 50 grams of sugar in the other, which container would provide your aluminum block with a greater buoyancy force (assume both completely dissolve)?
2. If quick sand is really just sand suspended in water would you expect a person to sink like they do in the movies? (Hint: you can think about this as if the sand was dissolved in the water to good approximation).
2007-07-05 07:22:31 · 2 answers · asked by NATTY 1 in Science & Mathematics ➔ Physics
Hi. 2) Yes. Quicksand is really sand suspended by a spring. When you put your foot in the sand above your foot is no longer suspended by the up flowing water and settles on your foot, weighing it down. When you try to pull it up, the other foot goes deeper and the process repeats. And don't even ask about the sand that gets into your pants!
2007-07-05 07:31:26 · answer #1 · answered by Cirric 7 · 1⤊ 0⤋
1. Assuming that the amount of solvent in both the containers was same,, we can conclude that the final density of both the substances was equal to (Mass of the solvent + 50g) / Volume of the solvent.
And the BF experienced by the aluminum block is given by (Volume of the aluminum block x Density of the solution x g).
Since all the quantities are equal, the aluminum block will experience equal BF in each container.
Hope this helps.
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2007-07-07 12:11:58 · answer #2 · answered by Prashant 6 · 0⤊ 0⤋