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Alice's doll creation - interactive exercise
| *mating press Alice*
| she just bought it from the store I know
| more than one but less than two
| >>832320
2. It'll technically only take ~1.06 bags, but since you can't buy a partial bag (not in any chain store anyway) she'll buy two.
However, if this is the real world. She'll buy one bag and use some scrap fabric to make up the difference.
| *mating press Alice's doll*
| >>832691
I don't think you could.
Going off the approximate given volume and a rough idea of traditional stuffed doll dimensions, Shanghai is about 15 cm tall and 6 cm across.
| Of course... with the given units, whatever the stuffing used in Alice's doll is, it's 30 times denser than tungsten.
550,000 kg/cubic meter. Water is 1kg/cubic meter. Wood is roughly 550.
| And tungsten is 19,250 kg/cubic meter.
| Alice uses gunpowder for her dolls.
| Gunpowder's density is about 1,000kg/m cubed
| 1.38 gram/cm³ * 100³ = 1380000 gram/m³
1380000 gram/m³ / (1000 gram/kg) = 1380 kg/m³
Tungsten has a density of 19250 kg/m³
19250 kg/m³ / 1380 kg/m³ ≈ 13.95
Tungsten is 13.95 times more dense than the stuffing.
1 Liter is equal to 1 cubic decimetre (0.1m³ or 10cm³), and 1 Liter of water is 1 kg
1 kg/dm³ * 10³ = 1000 kg/m³
According to a quick Google search, fine black powder is 1.7 gram/cm³
1.7 gram/cm³ * 100³ = 1700000 gram/m³
1700000 gram/m³ / (1000 gram/kg) = 1700 kg/m³
| >>832905
I very well might be.
When I made that second post I didn't reread the problem and mixed the 0.55kg/bag with the density.
Also, black powder does have a higher density, but modern gunpowder is about the same density as water. A quick google search will tell you that as well.
| >>832992 Black powder is the same as gunpowder.
"Modern corning first compresses the fine black powder meal into blocks with a fixed density (1.7 g/cm3)" This is because the pressure created diminishes greatly if the black powder is not compressed.
You shouldn't take anything as gospel though, because the density depends on production method, compression and many other factors.
Also, modern ignition uses smokeless powder as black powder will leave residue in the tubes which need-
| -to be cleaned out to avoid misfiring.
| I want to compress black powder to 550.000 kg/m3............
| >>833017
It is not quite the same. Having used both extensively I can assure you, black powder doesn't have the same energy density as modern powder.
But literally the first result & the verified snippet if you goolge the density of gunpowder says it averages 1000 kg/cubic meter.
http://www.madsci.org/posts/archives/2007-11/1195506740.Ph.r.html
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| Alice bought some bags of stuffing for her doll project which weigh 0.55 kg per bag. The approximate size of her doll Shanghai is about 421.5 cubic centimeters. If the density of stuffing is 1.38 grams/cm3, approximately how many bags of stuffing are required to create her doll Shanghai?