Here's how to convert 3,000,000,000 ms to scientific notation:

1. Move the decimal point:

Start with 3,000,000,000. Move the decimal point 9 places to the left to get 3.0.

2. Count the decimal places:

You moved the decimal point 9 places to the left.

3. Write in scientific notation:

The result is 3.0 x 10⁹

Therefore, 3,000,000,000 ms in scientific notation is 3.0 x 10⁹ ms.