Question

Consider the following information.

Answer 1

1 hour = 3.6 x 10^3 seconds
1 day = 24 hours
1 year = 3.65 x 10^2 days

By process of dimensional analysis:
1 yr x 3.65x10^2 days/1 yr x 24hrs/1day = 8,760 hours

In scientific notation: 8.760 x 10^3 hours

Answer 2

Answer: $1\text{ year}=8.76\times10^3\text{ hours}$

Step-by-step explanation:

Given: $\text{1 hour}=3.6\times10^3\text{ seconds}$

$\\1\text{ day=24 hours}...................(1)\\\text{1 year = }3.65\times10^\text{ days}$

$\\\Rightarrow\ 1\text{ year}=3.65\times10^2\times24\text{ hours}...........(\text{ from (1)})\\\Rightarrow\ 1\text{ year}=3.65\times24\times10^2\text{ hours}\\\Rightarrow\ 1\text{ year}=87.6\times10^2\text{ hours}\\\Rightarrow\ 1\text{ year}=8.76\times10^3\text{ hours}................\text{In scientific notation}$

Hence, $1\text{ year}=8.76\times10^3\text{ hours}$