Use scientific notation to solve the problem.
-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) $76 \mathrm { sec }$
B) $7.6 \times 10 ^ { 2 } \mathrm { sec }$
C) $7.6 \times 10 ^ { 2 } \mathrm {~min}$
D) $7.6 \times 10 ^ { 3 } \mathrm { sec }$

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: $2.29 \times 10^{11} \mathrm{~m} / 3.00 \times 10^8 \mathrm{~m/sec} = 0.763 \times 10^3 \mathrm{~sec}$, which is $7.63 \times 10^2 \mathrm{~sec}$, or approximately $7.6 \times 10^2 \mathrm{~sec}$.

Use Scientific Notation to Solve the Problem 3.00×108 m/sec3.00 \times 10 ^ { 8 } \mathrm {~m} / \mathrm { sec }3.00×108 m/sec

Use Scientific Notation to Solve the Problem $3.00 \times 10 ^ { 8 } \mathrm {~m} / \mathrm { sec }$