The diameter of a human hair is 9*10^-5 meters. The diameter of a spider's silk is 3*10^-6 meters.
How much greater is the diameter of a human hair than the diameter of a spider's silk?
Write your answer in scientific notation.
To find the difference in diameter between a human hair and a spider's silk, we need to subtract the diameter of the spider's silk from the diameter of the human hair.
Diameter of human hair = 9 * 10^-5 meters
Diameter of spider's silk = 3 * 10^-6 meters
Difference in diameter = (9 * 10^-5) - (3 * 10^-6)
= 9 * 10^-5 - 0.3 * 10^-5
= (9 - 0.3) * 10^-5
= 8.7 * 10^-5
Therefore, the diameter of a human hair is 8.7 * 10^-5 meters greater than the diameter of a spider's silk.