Solve the problem. Express the answer in scientific notation to two decimals unless requested otherwise.
-If the speed of light is $3.00 \times 10^{8} \mathrm{~m} / \mathrm{sec}$, how long does it take light to travel $2.29 \times 10^{11} \mathrm{~m}$, the distance from the sun to Mars?
A) $7.6 \times 10^{3} \mathrm{sec}$
B) $7.6 \times 10^{2} \mathrm{~min}$
C) $76 \mathrm{sec}$
D) $7.6 \times 10^{2} \mathrm{sec}$

Question

Quizplus · Accepted Answer

To find the time it takes light to travel from the sun to Mars, divide the distance by the speed of light: $2.29 \times 10^{11} \mathrm{~m}$ / $3.00 \times 10^{8} \mathrm{~m/s}$ = $7.63 \times 10^{2} \mathrm{~sec}$, which rounds to $7.6 \times 10^{2} \mathrm{sec}$.

Solve the Problem 3.00×108 m/sec3.00 \times 10^{8} \mathrm{~m} / \mathrm{sec}3.00×108 m/sec , How Long Does It Take Light to Travel

Solve the Problem $3.00 \times 10^{8} \mathrm{~m} / \mathrm{sec}$ , How Long Does It Take Light to Travel