What is 3.2 light years equal to?

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What is 3.2 light years equal to?

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Answer 1 · 2016-02-21T17:42:03

3 light years is approximately $2.84 \times 10^{13} k m$ $2.84 times 10^13 km$ , which is around 28400 billion kilometres!

Explanation:

Find seconds per year :
$3600 \frac{seconds}{h o u r} \times 24 \frac{h o u r s}{d a y} \times 365 \frac{d a y s}{y e a r} = 31536000 \frac{seconds}{y e a r}$ $3600 text(seconds)/(hour) times 24 (hours)/(day) times 365 (days)/(year) = 31536000 text(seconds)/(year)$

In one year light travels the speed of light in meters per second, multipled by the time in seconds:
1 light year $= c \times seconds per year = (3 \times 10^{8} m s^{- 1}) (31536000 \frac{seconds}{y e a r}) = 9.4608 \times 10^{15}$ $= c times text(seconds per year) = (3times10^8 ms^-1)(31536000 text(seconds)/(year)) =9.4608times10^15$ meters per year

3 light years $= 9.4608 \times 10^{15}$ $=9.4608times10^15$ meters per year $\times 3 y e a r s = 2.83824 \times 10^{16} m$ $times 3 years = 2.83824 times 10^16 m$

3 light years is approximately $2.84 \times 10^{13} k m$ $2.84 times 10^13 km$ , which is 28400 billion kilometres!

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What is 3.2 light years equal to?

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