Question
I have a hard time getting this someone help me?
Astronauts often use the unit light year to express intergalactic distances. If light travels 3.00 x .10^10 cm/s and one year is defined as 365 days, how many kilometers does light travel in one year?
Astronauts often use the unit light year to express intergalactic distances. If light travels 3.00 x .10^10 cm/s and one year is defined as 365 days, how many kilometers does light travel in one year?
Answers
I would change 3.00E10 cm/s to 3.00E5 km/s first, then
3.00E5 km/s x (60 s/min) x (60 min/hr) x (24 hr/day) x (365 days/yr) = ? km/year.
3.00E5 km/s x (60 s/min) x (60 min/hr) x (24 hr/day) x (365 days/yr) = ? km/year.
9.47*10^12 km or 9.47e12 km
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