To find the thickness of a fingernail, we need to add the diameter of a hair to the additional thickness of a fingernail.
Diameter of a hair = 4×10^(-3) inches
Additional thickness of a fingernail = 0.011 inches
Total thickness of a fingernail = 4×10^(-3) + 0.011 = 0.015 inches
Therefore, the thickness of a fingernail is 0.015 inches.
A human hair has a diameter of about 4×10−3 inches. A fingernail is about 0.011 inches thicker. How thick is a fingernail? Write your answer as a decimal to 3 places
1 answer