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Topic: Dimensional analysis  (Read 4366 times)

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Offline Confuzzled

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Dimensional analysis
« on: September 25, 2009, 05:44:01 PM »
Hey I know this question is impossibly easy for most people but I can't figure it out for the life of me, so here it is.
2)   A package of aluminum foil contains 50 ft2 of foil, which weighs approximately 8.0 oz.  Aluminum has a density of 2.70 g/cm3.  What is the approximate thickness of the foil in millimeters?
If someone could give me a heads up on how to tackle this thing I would really appreciate it.
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Offline JGK

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Re: Dimensional analysis
« Reply #1 on: September 25, 2009, 05:49:52 PM »
You need to do some unit conversions first
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Offline Confuzzled

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Re: Dimensional analysis
« Reply #2 on: September 25, 2009, 06:02:01 PM »
I understand that, but the problem is I don't know what order or formula to use to determine the final answer.
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Offline DrCMS

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Re: Dimensional analysis
« Reply #3 on: September 25, 2009, 06:15:27 PM »
What is the definition of density?

How do you calculate the volume of a cuboid?

What data do you have from the above formula?

Now rearrange and convert the units to give the answer
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