The amount of helium atoms lined up side to side that would span the diameter of a human hair is: 1.5625*10^6 atoms
To solve this problem the we have to do the conversion of units with the given information.
Information about the problem:
- d(helium atom)= 0.064 nm
- d(human hair)= 0.1 mm
- amount of helium atoms lined up side to side = ?
- 1 mm = 1*10^6 nm
By converting the units of the helium atom's diameter from nm to mm, we have:
d(helium atom)= 0.064 nm * 1 m/1*10^6 mm
d(helium atom)= 6.4*10^-8 mm
To know how many helium atoms lined up side to side would span the diameter of a human hair, we have to do a division as a following:
amount of helium atoms lined up side to side= d(human hair)/d(helium atom)
amount of helium atoms lined up side to side= 0.1 mm/6.4*10^-8 mm
amount of helium atoms lined up side to side= 0.1 mm/6.4*10^-8 mm
amount of helium atoms lined up side to side= 1.5625*10^6
What is unit conversion?
It is the transformation of a value expressed in one unit of measurement into an equivalent value expressed in another unit of measurement of the same nature.
Learn more about unit conversion at: brainly.com/question/141163
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