01-07-2012, 03:55 PM
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#49
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How U Doin?
Drives: 2014 CTS-V Coupe
Join Date: Oct 2008
Location: Californication
Posts: 24,154
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Quote:
Originally Posted by ibeck
After I'm done with my hw, gonna go out wash the car then taking some friends to the mall. At night, we have a welcome-back party at my friends place. Gonna be a good day as long as this hw doesn't ruin it.
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Nice!!
Quote:
Originally Posted by ibeck
And just in case anyone wants to help me (would be SUPER appreciated) here's the problem I can't get right.
Grains of fine California beach sand are approximately spheres with an average radius of 50 µm and are made of silicon dioxide. A solid cube of silicon dioxide with a volume of 1.00 m3 has a mass of 2600 kg. What mass of sand grains would have a total surface area (the total area of all the individual spheres) equal to the surface area of a cube 1.10 m on an edge?
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No clue, but good luck!! 
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