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The diameters of a strand of black hair and a strand of red hair is found to be 1.4×10⁻³.
What is defined as the scientific notations?
Scientific notation is a method of expressing extremely large or extremely small numbers.
- When a quantity between 1 & 10 is multiplied by a power of 10, it is composed in scientific notation.
- 650,000,000, for example, can be composed in scientific notation as 6.5× 10⁸.
- The scientific notation system relies on powers of ten. The coefficient is the first number, 1.23.
For the given question;
- Diameter of the black hair is 2.4×10⁻³ inch.
- Diameter of the red hair is 0.001 inch.
Convert the decimal value 0.001 in scientific notations;
= 0.001 inch
= 1×10⁻³ inch
Now, calculate the difference;
Difference in diameter = Black hair diameter - Red hair diameter
Difference in diameter = 2.4×10⁻³ - 1×10⁻³
Difference in diameter = 1.4×10⁻³
Therefore, the value of the difference in the diameter of red and black hair is found as 1.4×10⁻³.
To know more about the scientific notations, here
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