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
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.
To determine the thickness of a fingernail, we need to find the difference between the thickness of a finger and a human hair.
Given:
Diameter of a human hair = 4 x 10^-3 inches
Finger thickness = 0.011 inches
To find the thickness of a fingernail, we subtract the diameter of a human hair from the thickness of a finger:
Thickness of fingernail = Finger thickness - Diameter of hair
Thickness of fingernail = 0.011 inches - 4 x 10^-3 inches
To subtract these values, we need to convert the diameter of a hair to the same unit as the finger thickness:
4 x 10^-3 inches = 0.004 inches
Now we can perform the subtraction:
Thickness of fingernail = 0.011 inches - 0.004 inches
Thickness of fingernail = 0.007 inches
Therefore, the thickness of a fingernail is 0.007 inches.
To find the thickness of a fingernail, we start with the information provided:
- The diameter of a human hair: 4 x 10^-3 inches
- A finger is about 0.011 inches thicker than a human hair
To calculate the thickness of a fingernail, we need to add the thickness of a finger to the diameter of a human hair.
Thickness of a fingernail = Diameter of a human hair + Thickness of a finger
Thickness of a fingernail = 4 x 10^-3 inches + 0.011 inches
Calculating the sum:
Thickness of a fingernail = 0.015 inches
Therefore, the thickness of a fingernail is 0.015 inches.