if you get 8 hours of sleep at night how many nanoseconds is that

Answer 1

A nanosecond is 10⁹ seconds for every 1 second. So for this question, you will have to use dimensional analysis. You know for every hour, there are 60 minutes and for every minute there are 60 seconds and for every second, there are 10⁹ nanoseconds. Use dimensional analysis and it so all your units except for nanoseconds cancel out.

So you'll get: (8 hours)(60 minutes/1 hour)(60 seconds/1 minute)(10⁹ nanoseconds/ 1 second)

= 2.88E13 nanoseconds