The diameter of a human hair is 9 \cdot 10^{-5}9⋅10
−5
9, dot, 10, start superscript, minus, 5, end superscript meters. The diameter of a spider's silk is 3 \cdot 10^{-6}3⋅10
−6
3, dot, 10, start superscript, minus, 6, end superscript 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.