light travels at a constant speed of 3x10^11 cm /sec how long does it take light to reach the earth a distance of 1.5x10^8 km give your answer in seconds and minutes.

Answer 1

Your speed of light is 10 times too high.

After you get that right, the time required is distance divided by speed.

I am sure you can convert seconds to minutes. It should be about 8 minutes.