2006-10-09 22:27:41 · 13 answers · asked by minforyourlife 2 in Science & Mathematics ➔ Physics
From what substance is that hair? What is its mass?
Count the no. of hair threads in the Carpet. Then use the mole equation to solve this proplem.
But if you want a simple answer, a gram of Hydrogen contains quadrillion-900 000 000 000 000 000 000 000 atoms. So, it may seem clear that the atoms are more!
2006-10-10 02:22:19 · answer #1 · answered by Palestini Detective 4 · 0⤊ 0⤋
Well, why don't we figure it out?
A hair is around 90 micrometre in diameter (or 0.09 mm), and let's assume a typical hair would be 6 cm in length. That would make the volume of a hair 3.8E-10 m^3 (3.8E-4 cm^3).
Now, let's make two assumption. One is that a hair has about the same density as water; which is not too far from the truth. Hair can float but barely. The other one is that the molecule of keratin that makes hair is essentially carbon in weight; that is we will assume that the hydrogen atoms light weight compensate for the nitrogen and oxygen ones, that assumption can only be conservative as far as the number of atoms in a hair is considered.
So, we would have a hair weight about 3.8E-4 g, and since carbon weight 12 g per mole (6.022E23 particles per mole), we would get about 2E20 atoms in a single hair.
Now, how many hair is 2E20 hair? The average person has 100000 hair (some people are lucky I guess, some other are totally deprived of such head ornament...), and there are 6E9 people on the planet, so that is 6E14 human hair, which is to say, there are 33000 times more atoms in a single hair than hair on all the head of all the people on this planet.
Now, how big does a carpet has to be to contain that many (2E20) hair (which would weight the impressive 76 billion tonnes)?
2006-10-10 06:19:10 · answer #2 · answered by Vincent G 7 · 2⤊ 0⤋
It Depends on Length of Hair and Size of Carpet.
2006-10-10 05:40:10 · answer #3 · answered by wparkar 2 · 1⤊ 0⤋
it depends on the size of the carpet as well as the size of the hair
2006-10-10 05:39:07 · answer #4 · answered by tariq 2 · 1⤊ 0⤋
naturally that depends on the length of hair and the length of the pile of the carpet.
2006-10-10 05:29:25 · answer #5 · answered by Ruthie Baby 6 · 1⤊ 0⤋
Yes.
2006-10-10 05:32:11 · answer #6 · answered by Anonymous · 1⤊ 1⤋
Absolutely, positively, yes.
2006-10-10 05:35:25 · answer #7 · answered by Bob 3 · 1⤊ 1⤋
more than likely, yes.
2006-10-10 05:30:32 · answer #8 · answered by Anonymous · 0⤊ 0⤋
Why don't you count it, you may get the NOBEL PRIZE.
2006-10-10 05:30:57 · answer #9 · answered by enigma 2 · 0⤊ 0⤋
surely yes!
2006-10-10 06:00:26 · answer #10 · answered by U know who 3 · 1⤊ 1⤋