Question

It's generally known that it takes 8 minutes for light to get from the Sun to the Earth. If the speed of light is 3.0 X 10^8 m/s and the distance from the Sun to the Earth is 9.3 X 10^7 miles, is this a true statement?

Answer 1

yes

Explanation:

The time required at the given speed and distance is ...

time = distance/speed

time = (9.3×10^7 mi)(1.6×10^3 m/mi)/(3.0×10^8 m/s) ≈ 4.96×10^2 s

This time corresponds to 8 minutes and 16 seconds. To an accuracy of 1 significant digit, the statement is true.