The diameter of a grain of sand is 0.0024 inch. Write the diameter in scientific notation __inch

To express the diameter of a grain of sand, which is 0.0024 inch, in scientific notation, you can follow these steps: 1. Move the decimal point to the right until you have a number between 1 and 10. In this case, moving the decimal point two places to the right gives you 2.4. 2. Count how many places you moved the decimal point. Here, you moved it 2 places. 3. Since you moved the decimal to the right, the exponent will be negative. Thus, the diameter in scientific notation is: \[ 2.4 \times 10^{-3} \text{ inch} \]