To find the thickness of a fingernail, we need to add the thickness of a finger to the diameter of a human hair.
The thickness of a fingernail = diameter of a human hair + thickness of a finger
Given:
Diameter of a human hair = 4 x 10^-3 inches
Thickness of a finger = 0.011 inches
Thickness of a fingernail = 4 x 10^-3 + 0.011
Calculating this sum:
Thickness of a fingernail = 0.015 inches
Therefore, the thickness of a fingernail is 0.015 inches.
A human hair has a diameter of about 4 x 10^-3 inches. A finger is about 0.011 inches thicker. How thick is a fingernail? Write your answer as a decimal to 3 places
1 answer