Light travels at about 3×10^5 kilometers per second. There are approximately 6.048×10^5 seconds in one week. How far does light travel in one week? Express your answer in scientific notation

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Answer 1 · 2018-03-06T17:36:08

#color (purple)(1.8144×10^14m="distance")#

Assumptions
1.) #c=3×10^8 ms^(-1)#
2.) #1" day"=24hrs#

We know that #"speed"="distance"/"time"#
We have time and speed as well.

#3×10^8="distance"/(6.048×10^5)#

#3×10^8×6.048×10^5="distance"#

#18.144×10^(5+8)="distance"#

#1.8144×10×10^13="distance"#

#1.8144×10^14m="distance"#