Question

# The speed of light is about $1.9 \times 10^{5}$ miles per second. It takes about 500 seconds for light to travel from the sun to Earth. What is the approximate distance between Earth and the sun? Write in scientific notation.

Solution

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Answered 1 year ago
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The following are given in the problem.

$\text{speed of light} = \textcolor{#c34632}{1.9 \times 10^5 \ \text{miles per second}}$

$\text{time} = \textcolor{#c34632}{500\ \text{seconds}}$

To determine the approximate distance between Earth and the sun, we derive a formula from the speed equation given by

\begin{aligned} \text{speed} &= \dfrac{\text{distance}}{\text{time}} \\ \\ \text{distance} &= \text{speed} \times \text{time} \end{aligned}

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