Question

Light travels at a speed of 3.0 times 10 to the 8th power m/s. How many seconds does it take to get to earth if earth is 3.99 times 10 to the 16th power meters away?

Answer 1

Light travels at 300,000,000 meters/second. It is calculated as 3 x 10^8.

Earth is 3.99 x 10^16 meters away.

I used the formula (3.99 x 10^16) divided by 300,000,000.

The answer is 133,000,000 seconds