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Number 3.Light travels 1.9x10^5 kilometers per second.there are 6.4 x 10^5 seconds in one week .About how many kilometers does light travel.

Number 3.Light travels 1.9x10^5 kilometers per second.there are 6.4 x 10^5 seconds-example-1
User Cateof
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1 Answer

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16 votes

helloo

from the question given, we have some variables


\begin{gathered} \text{speed}=1.9*10^5\operatorname{km}\text{ /s} \\ \text{time}=6.4*10^5s \\ \text{distance}=x \end{gathered}

now the formula for speed is given as


\begin{gathered} \text{speed}=\frac{\text{distance}}{\text{time}} \\ 1.9*10^5=(x)/(6.4*10^5) \\ x=(1.9*10^5)*(6.4*10^5) \\ x=1.22*10^(11)\operatorname{km} \end{gathered}

User Jahnold
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