AdamW said:127000/190 = about 670 nails.
So, a kilogram of the arbitrary 2" nails I just invented, consists of 670 nails.
......nails are not uniform in any way shape or form.
AdamW said:Well, you can estimate it as such:
Your 2" nail. Let's say it has a shank diameter of 2mm, and let's approximate 2" to 50mm.
Rmembering your secondary school maths, the volume of the nail shank is the cross-sectional area multiplied by the length,
Shank volume = (pi * 1^2) * 50 = about 160mm^3
The head of the nail, let's say it is 6mm across and 1mm high.
Head volume = (pi * 3^2) * 1 = about 30mm^3
So the total volume of one nail is 190 cubic mm.
The density of a high-carbon steel is about 7850 kg per cubic metre. Thus one kilogram of steel has a volume of 1/7850 of a cubic metre.
To convert cubic metres to cubic mm, multiply by 1000 3 times:
(1/7850) * 1000^3 = 127,000 mm^3
So, one nail has a volume of 190 cubic mm. Our kilogram of nails has a total volume of 127000 cubic mm. Let's do some more arithmetic:
127000/190 = about 670 nails.
So, a kilogram of the arbitrary 2" nails I just invented, consists of 670 nails.
mildmanneredjanitor said:can you help my daughter with her maths homework!!!
She's 11!
AdamW said:But I have a Physics degree now so I guess that could count for lost time
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