WILL GIVE BRAINLIEST! if you can write a letter to help me use scientific notation to express very large and very small quantities.

Let's say you wanted to count the stars in the night sky  and there are many star in the sky  and that number is going to be hard to remember but with the scientific notation it will be shorter. A light year is the distance that light can travel in a year, or about 6 trillion (6,000,000,000,000) miles. As this example shows, numbers in science may be very large. Many other numbers  in science are very small. Both very large and very small numbers have many zeroes, so they are hard to read and write without making mistakes. That’s where scientific notation comes in. Scientific notation is a way of writing very large or very small numbers that uses exponents. Numbers are written in a  format like this a*10^b

The letter a stands for a decimal number, and the letter b stands for an exponent, or power, of 10. For example, the number 300 is written in scientific notation as 3.0 × 102. The number 0.03 is written as 3.0 × 10-2. It’s easier to convert numbers to and from scientific notation than you might think.

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m