How far does light travel in the following time spans: 4.0 days and 8.0 yr?
From my notes I have that the speed of light is 2.997925 x 10^8. I need to figure out how to how it travels in the following time spans: 4.0 days, and 8.0 yr with the answers expressed using two significant figures. My calculations have been a little off and I am not sure what I am doing wrong, any explanation will be greatly appreciated. Thank you in advance!
From my notes I have that the speed of light is 2.997925 x 10^8. I need to figure out how to how it travels in the following time spans: 4.0 days, and 8.0 yr with the answers expressed using two significant figures. My calculations have been a little off and I am not sure what I am doing wrong, any explanation will be greatly appreciated. Thank you in advance!
1 Answer
Explanation:
So we know the speed of light:
Therefore we have to convert 4.0 days and 8.0 years to seconds:
For 4 days:
For 8 years:
Assuming one year is 365 days:
Then we can calculate how far light has traveled in the period:
4 days:
for 8 years: