Question

Express one second in a year in scientific notation

Answer 1

3.17098e-8 is scientific notation 

Answer 2

Answer:

In 1 second 3.17 x $10^{-8}$ year

Step-by-step explanation:

First we find how many years in 1 second.

As we know second is smaller unit then year

So, we start from larger to small

1 year = 365 days

1 days = 24 hours

1 hour = 3600 seconds

Therefore, 1 year = 365 x 24 x 3600 seconds

1 year = 31536000 seconds

1 year = 3.15 x $10^{7}$ seconds

1 second = 3.17 x $10^{-8}$ year